AbstractMesenteric masses are infrequent lesions ranging from benign cysts to aggressive malignancies and often present a diagnostic and therapeutic challenge. The mesentery is a frequent recipient of metastases from the gastrointestinal tract, pancreas, and biliary cancers. Primary mesenteric tumors are relatively rare, mostly mesenchymal in origin and benign in nature. Examples include gastro...

Background: Cancer as the second leading cause of death following cardiovascular diseases has always been a threat to human life and due to its peculiar nature and lack of a favorable treatment, it is considered as a research priority in all communities. Understanding the geographical distribution of the incidence of various tumors, constitutes the first step in health and treatment planning. T...

background and objectives: gastrointestinal polyps are proliferative or neoplastic mucosal lesions. the most important point about these polyps is risk of malignancy of them. this study was performed to determine type and frequency of polyps of gastrointestinal tract in iranian population according to their locations. materials and methods: totally, 210 patients referred to rasul-e-akram hospi...

Published data on 4-week-long administration of extra thyroxine (T4) in broiler breeder hens to alleviate the cold-induced ascites in their offspring suggested that long-term maternal hyperthyroidism would affect the gastrointestinal tract morphology. Broiler breeder hens (n=70) were reared in individual cages and allotted to control and hyperthyroid groups (five replicates of seven ...

hospital because of hematemesis. Esophagogastroduodenoscopy showed more than 10 gastric polypoid lesions (●" Fig. 1 a). The smaller lesions were sessile, clearly demarcated, and had whitish erosions on the surface (●" Fig. 1b). The larger lesions were sub-pedunculated, and indigo carmine staining revealed a constricted base and elongated gastric pits on the surface (●" Fig. 1c). These endoscopi...

Gastrointestinal stromal tumors (GISTs) are rare tumors and can be a cause of gastrointestibnal bleeding, when other causes have already been excluded. This mesenchymal tumors can be diagnosed hardly, and they should be included in any differential diagnosis. Our case illustrates the difficulty of diagnosis and sometimes shows how non-invasive test can be few helpful. Surgery is very often indi...

Although gastrointestinal involvement by metastatic malignant melanoma is common but primary gastrointestinal (GI) melanoma has been reported in rare cases. In this study we report two cases of primary gastrointestinal malignant melanoma that one of them is a known case of neurofibromatosis type 1(NF1). Both cases showed no evidence of any lesions in skin and eye. Malignant melanoma of GI tract...

Various complications of hydatid cyst have been recognized to date. We have encountered one such complication-rupture of hydatid cyst to the duodenum­ leading to upper gastrointestinal bleeding in a 40 year old male, who referred with severe right upper quadrant (RUQ) pain and gastrointestinal bleeding of a few hours' duration. Laparotomy revealed a cyst (7 x 15 cm) in the left lobe of the ...