carcinoma

Stomach cancer: epidemiological, diagnostic and therapeutic aspects at the Kara Teaching Hospital, Togo

Published on: 16th March, 2022

Objective: To report our experience in the management of gastric cancers at the Kara University Hospital (Togo).Materials and methods: This was a retrospective and prospective study which was conducted from January 1, 2018, to July 31, 2021, in the general surgery and hepato-gastroenterology department of the Kara University Hospital (Togo). This study involved all patients treated for gastric cancer during the study period at CHU Kara (Togo).Results: We recorded 32 gastric cancers out of the 218 cases of cancer diagnosed during the study period. We had 20 men and 12 women with a sex ratio (M/F = 1.7). The average age was 58 years with the extremes ranging from 17 to 85 years. The pattern of the consultation was dominated by epigastralgia (100%) and deterioration in general condition (100%). Upper digestive endoscopy with biopsies was performed in all our patients. The antral localization was the most found in 62.5% of cases. The most common macroscopic appearance was ulcers-budding (90.6%) and the dominant histological type was moderately differentiated adenocarcinoma (87.5%). The extension assessment found liver metastasis in 10 cases, multiple regional lymphadenopathies of the hepatic pedicle and celiac trunk in 26 cases, ascites related to peritoneal carcinomatosis in 26 cases. Therapeutically, a 4/5 gastrectomy with D1 dissection was performed in 6 cases; gastrojejunal anastomosis in one case and palliative treatment in 25 cases. Survival at 1 year is 50% (3 patients) among operated patients. All the other patients (78.1%) who received palliative treatment all died within 3 months.Conclusion: Improving the prognosis of stomach cancer like other cancers requires early diagnosis to perform a gastrectomy, the only guarantee of long survival.
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Immunohistochemical expression of p53 and Fox A1 in epithelial ovarian cancer

Published on: 20th May, 2022

Background: Ovarian cancer (OC) is the fifth cause of cancer mortality in females. There were an estimated 300,000 new cases of OC diagnosed worldwide in 2018, corresponding to 3.4% of all cancer cases among women. The high mortality rate of OC attributed to asymptomatic growth of the tumor leads to its diagnosis at advanced stages. About 85% - 90% of OC are epithelial including serous, endometrioid, clear cell, and mucinous carcinoma. Aim: To study the immunohistochemical (IHC) expression of FOXA1 and p53 in epithelial OC and its association with prognostic indicators such as age, tumor size, stage, grade, and histological type.Materials and methods: The study included 52 cases with EOC from the pathology department, faculty of medicine, Aswan, and Sohag Universities, in the period from January 2017 to December 2019. This study involved 52 patients with OC and a median age of 53 years. Different histological types were included as 37 serous, 12 mucinous, 1 case endometroid 2 cases clear cell OC. The study cases were classified into 22 Grade I, 16 Grade II, and 20 Grade III. About 22 cases were at stage I, 9 at stage II, 11 at stage III, and 10 at stage IV. Tissue sections were stained using the IHC technique with FOX A1 at a dilution of 1:100 and p53 at 1:100. Results: A statistically significant correlation was found between FOX A1 expression and advanced patient's age, high grade, advanced stage, ruptured capsule, and ascites, regardless of tumor laterality. No significant association was found between p53 immunoexpression and the same clinic-pathological parameters although p53 was associated with serious type. Conclusion: FOXA1 immunoexpression in EOC is considered a poor prognostic factor in EOC. FOXA1 could be a potential therapeutic target and prognostic marker in EOC.
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Renal neoplasms and computed tomography

Published on: 8th November, 2022

Introduction: In recent years the increased utilization of imaging modalities has led to an accelerated diagnosis of renal masses. Initial diagnoses and staging are commonly done with the abdominal Computed Tomography (CT). This study evaluates the various aspects to consider when utilizing CT scan for the diagnosis of renal masses.Discussion: CT scan is the most important imaging modality to evaluate renal neoplasms. Postcontrast acquisitions can be tailored according to the indication for the study. This alongside various techniques, imaging modalities and classification systems may help differentiate the malignant Renal Cell Carcinoma, from benign or metastatic lesions, lymphomas or renal pseudotumor. Finally CT can also be utilized alongside other tools for staging the tumor. Conclusion: Certain CT imaging features are pertinent to evaluate the malignancy potential of renal lesions. However the CT alone may be inconclusive in diagnosing the majority of renal neoplasms, excluding AML with macroscopic fat. Hence it is recommended that the CT aid additional imaging modalities and tools to reach an accurate diagnosis.
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Jejunal adenocarcinoma, a rare cancer of the gastrointestinal tract: a comprehensive review discussion epidemiology

Published on: 24th November, 2022

Malignancy of the small bowel is exceedingly rare, accounting for 3% - 5% of all gastrointestinal malignancies [1-3]. However, in recent years because of improved diagnostic accuracy, the incidence of small bowel cancer is rising. It is estimated that 10, 470 new cases of primary SI cancer will be diagnosed in the US with 1450 cancer-related deaths [4]. The most frequent histologic types of small bowel malignant tumors include adenocarcinomas, carcinoids, lymphomas, and sarcomas. Adenocarcinoma of the small intestine is the second most common histologic type of SI cancer. The most frequent location of SI adenocarcinoma is the duodenum (57%), followed by the jejunum (29%) and ileum (13%) [5]. SI cancers are more common in men than women [6]. They occur more commonly in the African-American population and after 60 years of age [7].
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Outcome of liver transplantation for autoimmune hepatitis in South Africa

Published on: 31st December, 2022

Background: Liver Transplantation (LT) is the definitive treatment for Autoimmune Hepatitis (AIH) in patients with decompensated cirrhosis, liver failure and hepatocellular carcinoma. Outcomes of LT in AIH among black-Africans are not well-defined. We performed a single-center retrospective-review of adult LT patients. The study period was from 1st August 2004-31st August 2019. The primary aim was to document 1- & 5- year patient and graft survival. A secondary aim was to compare the survival of black-Africans to Caucasians. Data was analyzed using survival-analysis. Results: A total of 56 LT were performed for AIH. Sixty-seven percent (n = 38/56) had confirmed AIH on explant histology. Of these, the majority i.e., 79% (30/38) were female and 21% (8/38) were male. There were equal numbers of black-African 42% (n = 16/38) and Caucasian 42% (n = 16/38) patients. Rejection was four-times higher in black-Africans as compared to Caucasians. Forty-four percent (n = 17/38) had an acute rejection episode and 13% (5/38) had chronic rejection. Recurrence was found in four black-African females. Post-LT patient survival at 1- and 5- years was 86.5% and 80.7%, and graft survival was 94% and 70.8% respectively. The 5- year patient survival was insignificantly lower for black-Africans (73.9%) as compared to Caucasians (83.7%) (p - value 0.26, CI 6.3 - 12.2). Five-year graft survival was significantly lower among black-Africans (55%) as compared to Caucasians (84.8%) (p - value 0.003 CI 3.8 - 8.1)Conclusion: Black-Africans had a four-fold higher rate of rejection compared to Caucasians. Recurrent AIH was only found in patients of black ethnicity. Similar 1- & 5- year patient survival rates were observed between the two ethnicities. The 5-year graft survival among black-Africans was significantly lower than Caucasians.
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Mammographic correlation with molecular subtypes of breast carcinoma

Published on: 14th February, 2023

Aim: To determine the correlation between mammographic features of breast cancer with molecular subtypes and to calculate the predictive value of these features. Materials and method: This is a retrospective study of breast cancer patients presenting between January 2017 and December 2021, who underwent mammography of the breast followed by true cut biopsy and immunohistochemical staining of the tissue sample. Breast carcinoma patients without preoperative mammograms, those unable to undergo histopathological and IHC examinations and h/o prior cancer treatment were excluded. On mammography, size, shape, margins, density, the presence or absence of suspicious calcifications and associated features were noted. Results: Irregular-shaped tumors with spiculated margins were likely to be luminal A/B subtypes of breast cancer. Tumors with a round or oval shape with circumscribed margins were highly suggestive of Triple negative breast cancer. Tumors with suspicious calcifications were likely to be HER2 enriched. Conclusion: Mammographic features such as irregular or round shape, circumscribed or noncircumscribed margins and suspicious calcifications are strongly correlated in predicting the molecular subtypes of breast cancer and thus may further expand the role of conventional breast imaging.
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A case of hepatic intraductal papillary neoplasm of the bile duct

Published on: 21st March, 2023

Introduction: Intraductal Papillary Neoplasm of the Bile ducts (IPNB) is a rare entity characterized by exophytic growth of the bile ducts.Case presentation: In this report, we present a 57-year-old male with no prior medical history consulted for upper right abdominal pain, jaundice and pruritus. Abdominal Ultrasound (US) and magnetic resonance imaging/Bili-magnetic resonance were performed. They revealed that the circumferential parietal thickening of the common hepatic duct had extended approximately 4 cm with moderate dilatation of the left intrahepatic bile ducts. Computed tomography showed no evidence of distant metastasis.Biopsy revealed a high-grade intraductal papillary neoplasm. After 40 days, the patient had left hepatectomy with resection of the main bile duct and the gallbladder. Macroscopic examination of the surgical specimen showed a dilatation duct at the hilum with thickening of their walls.The histopathology report revealed multiple intra-hepatic papillary neoplasms with high-grade dysplasia with an invasive carcinoma component in the left hepatic duct without extending to the biliary wall, classified as pT1N0.Conclusion: This premalignant lesion has the potential to transform into invasive carcinoma if not properly diagnosed.Our case illustrates how early identification can lead to potential surgical resection.
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Minimally invasive cytoreductive surgery in advanced ovarian cancer: A nonselected consecutive series of robotic-assisted cases

Published on: 28th April, 2023

The gold standard for advanced-stage ovarian cancer surgery entails exploration via a midline vertical laparotomy. Studies have shown that minimally invasive surgery (MIS) can be a safe and effective method for the surgical management of early ovarian cancer. In some cases, MIS can also be selectively used for cytoreductive surgery in cases with advanced-stage ovarian cancer. The robotic platform has the potential to provide similar outcomes to the laparotomy-based standard of care in advanced complex surgery while accelerating recovery, minimizing morbidity, and reducing perioperative complications. The primary objective of this study was to evaluate surgical and perioperative outcomes in patients with advanced ovarian carcinoma who underwent robotic-assisted cytoreduction. A chart review of a nonselected consecutive series of all patients undergoing surgical management of advanced ovarian cancer between 7/1/2017 and 12/31/2021 was conducted. All patients that were diagnosed with Stage III to IV ovarian cancer between the timeframe underwent robotic-assisted cytoreductive surgery at two urban community teaching hospitals in Los Angeles. Twenty-five patients were identified and included in this study. All surgeries were performed by a single surgeon. Optimal or complete CRS was achieved in 96% of the patients (24 of 25 cases). Seven (28%) underwent primary cytoreduction (PCRS) and 18 (72%) underwent interval cytoreduction (ICRS). The estimated median blood loss was 100 mL (25-500 mL), the median operative time was 5.9 hours (3.1-10.5 hours), and the conversion rate to open laparotomy was 0%. There were no intraoperative complications and the readmission rate within 30 days was 4% (1 patient) for ileus, which was managed conservatively. Currently, 64% of the patients in the case series remain alive. The median survival has not been reached. The median follow-up is 4.08 years. Results presented from this nonselected, consecutive case series illustrate how a minimally invasive robotic approach can be safely used in place of the standard exploratory laparotomy for ovarian cytoreduction.
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Single brain metastasis as onset of stage I endometrial carcinoma in patient affected by multiple sclerosis: the first case in literature

Published on: 25th April, 2023

Brain metastases in any gynecological cancer are a rare occurrence. Even more so, it is extremely rare for a gynecological malignancy to manifest itself with symptoms indicative of cerebral involvement. Literature regarding the association between MS and cancer is conflicting. We herein report a rare presentation of single metastasis of endometrial carcinoma in a 59-year-old woman affected by Primary Progressive Multiple Sclerosis (PPMS). A head CT scan was performed, which revealed the presence of an expansive lesion in the left parietal region. After careful assessment, a high-grade endometrial carcinoma was diagnosed and a decision was made to remove both the primary lesion and the brain metastasis in one sitting, through a conjoined surgery session involving neurosurgeons and gynecologists. The postoperative course was free from complications up until a few days after being transferred to a rehabilitation center, where she died following respiratory complications.
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Cardiac Tamponade as the Cause of Pulmonary Edema: Case Report

Published on: 17th August, 2023

Introduction: Cardiac tamponade is an emergency syndrome that requires fast diagnosis and treatment; otherwise patient follows obstructive shock and cardiac arrest. Case report: A 70-year-old female was brought to the emergency department with hypoxemia. She had a history of progressive dyspnea over the past three weeks. Past medical history includes smoking. On physical examination: tachypnea, hypoxemia (SaO2 89%), jugular venous distention, arterial pressure 220/100 mmHg, heart rate rhythmic of 82 bpm. On pulmonary auscultation: diffuse and bilateral crackles. Lung ultrasound showed a bilateral B line and the echocardiogram demonstrated a pericardial effusion with signs of tamponade. A pericardiocentesis evacuated 620 ml of hemorrhagic fluid and the patient was transferred to the intensive care unit, hemodynamically stable, with SaO2 95%. At the ICU the echocardiogram, showed resolution of the cardiac tamponade and a tumor adhered to the lateral wall of the left ventricle. Chest CT demonstrated: a left lung tumor, infiltrating the pericardial sac. A pericardium biopsy demonstrated undifferentiated carcinoma. Discussion: Cardiac tamponade diagnosis requires a high level of suspicion. Respiratory failure, chest pain, and shock, observed in cardiac tamponade, are also present in different diseases. The most common finding of cardiac tamponade is dyspnea (78% of cases). Our patient had dyspnea due to pulmonary edema, secondary to left ventricle diastolic dysfunction caused by the tamponade. A bedside echocardiogram made the diagnosis of cardiac tamponade and guided the effective pericardiocentesis. Conclusion: Cardiac tamponade must be suspected in all cases of acute dyspnea. Echocardiogram is the method of choice for the diagnosis and for guiding the pericardiocentesis.
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Clinical Approach to Immunotherapy-induced Type 1 Diabetes Mellitus: A Case of Pembrolizumab Associated Insulin-dependent Diabetes in a Patient with NSCLC

Published on: 25th September, 2023

As the introduction of immune checkpoint inhibitors in the treatment of various cancers is now proven to be already acquired knowledge, so does a new challenge arise for clinicians; the understanding, diagnosis, and management of the rarest adverse effects of immunotherapy. We present a case of type-1 diabetes Mellitus (T1DM) in a patient with non-small cell lung carcinoma (NSCLC) treated with pembrolizumab. Following ten cycles of treatment, our patient was diagnosed with T1DM after being admitted for diabetic ketoacidosis and stayed hospitalized in the ICU. Later, they continued treatment with insulin, having shown disease response to pembrolizumab, and resumed immunotherapy while on insulin. Immunotherapy-induced T1DM can sometimes occur with PD1/PD-L1 blockage therapies. It has a rapid onset, is characterized by insulin deficiency due to the autoimmune destruction of beta-cells, and usually presents itself with diabetic ketoacidosis. Unlike most of the other adverse effects of immunotherapy, glucocorticoids don’t seem to be of therapeutic value, and insulin substitution is required. Regular glucose monitoring can be key to early diagnosis and prevention of hospitalization. 
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Age as a Predictor of Time to Response for Patients Undergoing Medical Management of Endometrial Cancer

Published on: 4th October, 2023

Objective: To explore the pathologic response rate to primary progesterone treatment in patients with Endometrial Intraepithelial Neoplasia (EIN) and early-stage endometrioid-type Endometrial Adenocarcinoma (EAC).Methods: Retrospective chart data were collected for patients with either EIN or EAC receiving primary progesterone treatment between 2015 and 2022. The presence of complete or partial response, time to response, and other demographic and treatment factors were recorded to determine independent predictors of response to progestin treatment.Results: In total, 112 women who were diagnosed with EIN or EAC were treated with upfront progestin therapy, of whom 79 had sufficient follow-up to assess response. Fifty patients (63%) responded, of whom 10 (20%) ultimately relapsed. Response was more robust among patients with EIN (79%, n = 33) compared with patients who had cancer (46%, n = 17). The median time to respond was 5.8 months overall. Diagnosis of EIN, younger age at diagnosis, and any pathologic evidence of progesterone effect were all predictors of treatment response. Younger patients had a significantly shorter time to partial or complete response with a median time to response of 5.9 months in patients ≤ 45 and 13.8 months in patients > 45. Conclusion: Our study demonstrated a lower overall response rate (63%) than reported in previous studies, especially for patients with cancer (46%). Younger patients had a significantly shorter time to respond than older patients. Pathologic progesterone effect observed at any time during treatment was a significant predictor of treatment response regardless of diagnosis and could serve as an early predictor of response to therapy.
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Therapy of Walker Carcinosarcoma with Pectin and Cyclophosphane

Published on: 4th October, 2023

Scientific interest in low-molecular-weight pectins is not accidental. Despite the experimental material widely presented in the literature on the pharmacological effects of pectins, the clinical application of the developments has not yet been fully implemented. On the one hand, antitumor potential is registered in polymers with a mass of hundreds of kilodaltons, on the other hand, practically nothing is known about such in pectin derivatives weighing less than 20 kDa. In addition, the issues of assessing the nature of the pharmacological interaction of nanoscale pectin and conventional cytostatics are not covered. The aim of this work is an experimental study of the antitumor potential of low-molecular, low-esterified pectin in combination with a cytostatic agent on a model of Walker’s carcinosarcoma. Pectin therapy of Walker’s transplanted tumor in several series of experiments consistently caused inhibition of its growth from 60% to 80%. The combined use of pectin and cyclophosphane caused inhibition of tumor growth up to 72.4%. The increase in life expectancy in the “pectin + cyclophosphane” group versus the “cyclophosphane” group was 200%. It can be concluded that nanoscale pectin is a promising drug for in-depth study since it meets the criteria of primary screening (increase in animal life expectancy, inhibition of tumor growth, survival without tumor growth).
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Expression of Collagen VI, Anticollagenase, Laminin, MM9, Claudins 1 and 5, N and E Cadherins in Choroid Plexus Tumors

Published on: 25th November, 2023

Background: CPTs are rare intraventricular papillary neoplasms derived from the choroid plexus epithelium. Anti-collagenase and extracellular matrix which have not been expressed in brain tumors. Objective: The purpose of this study was to investigate the expression levels of collagen type VI, anti-collagenase, laminin, MM9, claudins 1 and 5, N and E cadherins, and collagen VII, tejido, and collagen degradation enzyme complexes in choroid plexus tumors.Materials and methods: We studied the expression of adhesion molecules, extracellular matrix, and anticollagenase with an immunohistochemistry approach and electron microscopy analysis in 42 choroid plexus tumors. Results: 28(67%) were choroid plexus papillomas, 8 (19%) were atypical choroid plexus papillomas and 6 (14%) were choroid plexus carcinomas. The Ki67-li and MVD increased from CPC to ACPP, being the highest in malignant tumors as well as a strong immunoexpression of anti-collagenase and were inverse correlation with claudin 5, E, and N cadherin and collagen IV immunoexpressions which added further significant information to the prognosis and varied according to the histologic classification. By ultrastructure, the loss of basal membrane and cilia, disorganization, and proliferation of ECM were observed in CPC. Cerebral homeostasis largely results from the ability of both the Blood–Brain Barrier (BBB) at the brain microvascular endothelium and the Blood–Cerebrospinal Fluid Barrier (BCSFB) at the epithelium of the Choroid Plexuses (CPs), to control the composition of the CSF and cerebral extracellular fluid. Under expression of the tight junction proteins occludin, claudin-1 and claudin-5 are key molecular abnormalities responsible for the increased permeability of tumor endothelial tight junctions. Conclusion: The loss of basement membrane and ECM overexpression could be considered as a poor prognosis predictor in CPT. Anti-collagenase and MMP9 overexpression could be related to basal membrane and BBB plasticity in CPTs.
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A Perplexing Case of Genito-urinary Tuberculosis in an 83-Year-Old Woman with Increased Levels of Tumor Markers: A Case Report

Published on: 5th December, 2023

Background: Tuberculosis (TB) is a significant global health problem, and extrapulmonary TB can present with no specific clinical or radiographic findings. Genito-urinary TB is often associated with elevated tumor markers and can be misdiagnosed as ovarian/fallopian tube carcinomas, especially in elderly female patients, as genitourinary TB commonly affects women of reproductive age.Objective: We present a rare case of genito-urinary TB in an elderly female patient who was initially misdiagnosed with ovarian cancer with metastasis.Case presentation: An 83-year-old woman with a medical history of diabetes and hypertension presented with complaints of abdominal distension. Diagnostic imaging revealed lesions in the ovaries and omentum and tumor markers were elevated, leading to a suspicion of ovarian cancer with metastases to the omentum. The patient underwent a diagnostic laparotomy and surgical removal of ovaries, fallopian tubes, and the lesion of the greater omentum. However, no malignancy was found during the morphological evaluation. Further histopathological examination confirmed the final diagnosis of genito-urinary tuberculosis, and the patient received anti-TB drugs. The postoperative period was uneventful, and tumor marker levels decreased.Conclusion: As the clinical presentation of genito-urinary TB can mimic ovarian cancer, a histopathological examination should be performed for differential diagnosis, thereby reducing the possibility of inaccurate treatment. This case report highlights the importance of considering genito-urinary TB as a differential diagnosis in elderly female patients presenting with elevated tumor markers, abdominal distension, and suspected genital malignancy. It is crucial to carefully evaluate these cases and explore the possibility of genital TB as an alternative diagnosis, given the overlapping clinical presentation. This highlights the importance of a comprehensive diagnostic approach that includes considering TB in addition to malignancy, even in the context of elderly female patients.
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Case – Late Presentation of Invasive Keratinizing Squamous Cell Carcinoma

Published on: 27th December, 2023

Penile cancer, a rare but highly morbid disease, primarily manifests as squamous cell carcinoma (PSCC) originating from the squamous cells of the glandular and preputial skin. Late-stage diagnosis is common due to social stigma, psychological barriers, and nonspecific initial symptoms, resulting in poor overall survival rates, especially in metastatic cases. This case report illustrates a 38-year-old man with advanced metastatic PSCC, showcasing severe systemic manifestations and delayed presentation of the disease. Despite aggressive treatment options, the patient opted for palliative care, succumbing to the disease months after his diagnosis. Risk factors for PSCC include HPV infection, phimosis, chronic inflammation, and lifestyle factors, with higher prevalence in regions of low socioeconomic status. The psychological and sexual burden of penile cancer is significant, impacting patients’ well-being, mental health, and quality of life. In conclusion, efforts to reduce the stigma associated with penile cancer are crucial to prompt early diagnosis and treatment initiation. Encouraging seeking medical attention for symptoms can enhance the chances of recovery and minimize the need for invasive treatments. Addressing the psychosocial impact of the disease is imperative for holistic patient care.
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Case Series of Metastatic Cutaneous Malignant Melanoma to the Gallbladder and the First Reported Case of Metachronous Adenocarcinoma of the Colon

Published on: 18th January, 2024

Two female patients in their fifties with a previous history of cutaneous malignant melanoma were found during follow-up to have a 'hot' lesion in the gallbladder on a Positron Emission Tomography scan. Imaging showed a gallbladder polyp. Histology revealed infiltration of the polyp mucosa by metastatic malignant melanoma. One case had a BRAF mutation. A male in his 70s was found on a staging computed tomography scan to have a suspicious intraluminal lesion in the gallbladder and thickening of the sigmoid colon. Subsequent histology confirmed metastatic malignant melanoma in the chest wall and to the gallbladder and adenocarcinoma in the colon. Molecular testing showed BRAF mutation. The metachronous adenocarcinoma in the colon was mismatch repair protein proficient and had no KRAS mutation. Histology from all cases showed that metastatic malignant melanoma to the gallbladder is superficial.Discussion: Reports from autopsy examinations revealed that metastasis from malignant melanoma to the gallbladder can be up to 15% - 20%. Most patients have mild symptoms or are asymptomatic which explains the paucity of cases reported in living patients within the published literature. Most of the previous reports showed the metastatic malignant melanoma to the gallbladder presented macroscopically as a polyploidal lesion. Conclusion: Our histological observation and previous reports showed that metastatic malignant melanoma in the gallbladder tends to be superficial. All our cases show no lymphatic or vascular invasion in the histological examination as previously published reports, however, the hematological spread is the most commonly suggested mechanism of spread.
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Exploring the Prognostic Efficacy of Machine Learning Models in Predicting Adenocarcinoma of the Esophagogastric Junction

Published on: 7th March, 2024

Objective: To investigate the value of machine learning and traditional Cox regression models in predicting postoperative survivorship in patients with adenocarcinoma of the esophagogastric junction (AEG).Methods: This study analyzed clinicopathological data from 203 patients. The Cox proportional risk model and four machine learning models were constructed and internally validated. ROC curves, calibration curves, and clinical decision curves (DCA) were generated. Model performance was assessed using the area under the curve (AUC), while calibration curves determined the fit and clinical significance of the model.Results: The AUC values of the 3-year survival in the validation set for the Cox regression model, extreme gradient boosting, random forest, support vector machine, and multilayer perceptron were 0.870, 0.901, 0.791, 0.832, and 0.725, respectively. The AUC values of 5-year survival in the validation set for each model were 0.915, 0.916, 0.758, 0.905, and 0.737, respectively. The internal validation AUC values for the four machine learning models, extreme gradient boosting, random forest, support vector machine, and multilayer perceptron, were 0.818, 0.772, 0.804, and 0.745, respectively.Conclusion: Compared with Cox regression models, machine learning models do not need to satisfy the assumption of equal proportionality or linear regression models, can include more influencing variables, and have good prediction performance for 3-year and 5-year survival rates of AEG patients, among which, XGBoost models are the most stable and have significantly better prediction performance than other machine learning methods and are practical and reliable.
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Oral Cancer Management is not just Treatment! But also, how early Pre-cancerous Lesions are Diagnosed & Treated!!

Published on: 12th April, 2024

Oral Cancer (OC) or squamous cell carcinoma of the oral cavity accounts for approximately 3% of all cancers worldwide, with increased incidence in developing countries. The use of tobacco is directly associated with approximately 80% of oral cancers, especially in older men over 40 years of age. As nearly one-third of the Indian population over 15 years consume smokeless tobacco in one or the other forms, a recent increase has been observed in OC incidence among women and young adults. Lately, the sexual behaviors of young & homosexuals have resulted in the emergence of oropharyngeal cancers due to infection with HPV 16. About 60% of oral cancer cases in India have a five-year survival rate, and this can be improved to 70% to 90% by mere early detection in stages I and II and with various treatment modalities. Despite the well-known benefits of oral cancer screening for the whole population in developing countries remains controversial. It is imperative to address the cultural barriers and societal norms, which limit the acceptability and participation in screening programs in India and many developing countries. This unique challenge of increasing OC morbidity in India and developing countries requires horizontal integration of the health systems with new services focused on cancer control, which gives the best chance for long-term survival, improved outcomes, and affordable care!This article is based on the author’s experience of overseeing 1 case of early detection and 2 cases of delayed diagnosis, outcomes and relevant literature review, and current guidelines for the management of OC.
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Morular Metaplasia of the Endometrium: A Case Report and Literature Review: Care Pathways based on Molecular Biology

Published on: 30th April, 2024

Background: Endometrial morular metaplasia, a clinical conundrum from a diagnostic and management angle given its rarity and low oncogenic potential, has been linked to endometrial hyperplasia and carcinoma. Case report: A 77-year-old woman with no significant past medical history, was found to have an asymptomatic thickened endometrium on pelvic imaging, after presenting with lower abdominal pain, 3yrs ago. Diagnostic hysteroscopy identified an endometrial polyp within a pyometra. Histopathology showed focal complex endometrial hyperplasia without atypia with superimposed morular metaplasia(EMM) with a negative microbiology assay.Following conservative management with multidisciplinary team(MDT) overview, as-per patient choice with 6-monthly follow-up hysteroscopy, endometrial biopsies and a short use of the Mirena® Intrauterine system (discontinued following poor tolerance), histopathology shows resolved hyperplasia with persistent EMM. Due to persistent disease, a hysterectomy is under consideration.Discussion: Current evidence suggests that a sub-type of EMM, a likely histological manifestation of beta-catenin (CTNNB1) gene mutation: could be a precursor of endometrial hyperplasia and low-grade endometrioid-endometrial carcinoma sub-type. Though low-grade in nature, the increased recurrence risk raises significant concerns.Prognostication following gene mutation identification can help with management options which include conservative, hormonal therapy with adjunct repeat endometrial sampling: or hysterectomy. The optimal frequency of endometrial sampling when uterine-sparing, is unclear, leading to a management conundrum, whilst persistent disease may require a hysterectomy.Conclusion: Management of endometrial morular metaplasia can be difficult but must reflect the woman’s choice with a MDT-overview. Immuno-histochemical tools utilizing new molecular biological advances, can simplify the diagnostic and prognostication processes, aiding clinical management.
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