background: gastric and colorectal adenocarcinoma are the second and the fifth most common cancers in iran, respectively. expression of cytokeratin 7 (ck7) is established in most malignancies including gastric and colorectal adenocarcinoma. demonstration of ck7 could be related to prognostic factors and help to the better management of the patients. the objective of our study was to evaluate th...

although splenic metastasis is fairly common in disseminated cancer, solitary splenic metastasis in the absence of diffuse dissemination is rare. we report a case of 44 year-old man who developed isolated splenic metastasis of colon cancer. the patient had undergone right sided hemicolectomy for colon cancer in 1988. in 2001, he underwent reoperation because of local recurrence of tumor in the ...

Prolonged inflammation or irritation due to renal calculi can induce glandular metaplasia of the urothelium and even malignant neoplasm. Primary adenocarcinoma in pelvicalyceal system is a rare tumor in such patients. Here, a case of carcinoembryonic antigen (CEA) positive primary tubulovillous adenocarcinoma in pelvicalyceal system is reported. A 57-year-old male with right abdominal pain and ...

Background & Objective: Gastric cancer is the second most frequent cause of cancer death worldwide, despite differences in incidence around the world. The majority of gastric cancer cases concern gastric adenocarcinoma, which has a fairly high 5-year survival rate when coupled with early-stage diagnosis. Versican, a member of the aggregating chondroitin sulfate proteoglycans fa...

 Background: Gastric and colorectal adenocarcinoma are the second and the fifth most common cancers in Iran, respectively. Expression of cytokeratin 7 (CK7) is established in most malignancies including gastric and colorectal adenocarcinoma. Demonstration of Ck7 could be related to prognostic factors and help to the better management of the patients. The objective of our study was to evalu...

adenocarcinoma of the stomach was the leading cause of cancer-related death worldwide through most of the 20th century. usual presentations of gastric cancer include anorexia, epigastric pain or discomfort and weakness. rarely, patients present with unusual clinical manifestations. in this article, we report two cases with uncommon presentations of gastric adenocarcinoma. the first patient was ...

background and objectives: involvement of lymph nodes is an important prognostic factor in the most cancers, including colorectal cancer. in the recent years, invasion to blood and lymphatic vessels has been shown to predict involvement of lymph nodes and the number of involved nodes has been less studied issue. the aim of this study was determination of the relationship between the size of col...

we report two cases of a gastrointestinal stromal tumor (gist) synchronous and metachronous, respectively, with pancreatic adenocarcinoma. to our knowledge, this is the first report of a gist involved 3 years after a ductal pancreatic adenocarcinoma. data from the literature and our cases seem to suggest that incidental gist may occur synchronously and metachronously with other cancers more fre...

a 4-year-old female miniature pincher with a 40-day history of weight loss, lethargy and vomiting was referred to small animal hospital, faculty of veterinary medicine, university of tehran. the case also had severe jaundice, chronic diarrhoea and steatorrhoea. the efforts for saving the life of the case were not successful and finally the animal died of hypovolaemic shock and electrolyte imbal...

background: e-cadherin is a calcium-dependent molecule that contributes to intercellular adhesion. its proper functioning is important in the maintenance of epithelial structure and integrity. e-cadherin serves as a very important tumor suppressor. in this study, we aimâ to determineâ the frequencyâ of e-cadherin expression aberrancy and its relationship to theâ biologicalâ behavior of gastric ...