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...

prediction of the outcome and severity of acute upper gastrointestinal bleeding (ugib) has significant importance in patient care, disposition, and determining the need for emergent endoscopy. recent international recommendations endorse using scoring systems for management of non-variceal ugib patients. to date, different scoring systems have been developed for predicting the risk of 30-day mo...

background: cancer has a high mortality rate in both developing and developed countries. 11%–15% of cancers are attributable to occupational risk factors. objective: to determine if specific occupational classes, based on the international standard for classification of occupations 2008 (isco-08), are risk factors for gastrointestinal (gi) cancer. methods: in this case-control study, 834 cancer...

ingestion of foreign bodies is common and conservative treatment can eliminated most particlesfrom the gastrointestinal tractunless peritoneal signs appear. a 22-year-old man presented to emergency department who had ingested glass particles of a crushed beverage bottle. he complained of epigastric and periumbilical pain. physical examination did not revealany peritoneal signs. abdominal x-ray ...

  Gastrointestinal aspergillosis most often occurs in the setting of disseminated infection from a primary pulmonary site and primary gastrointestinal aspergillosis is an unusual presentation. We report a 7 year old female child with aplastic anemia, who was under treatment but experienced periods of neutropenia. She had no evidence of respiratory aspergillosis before the onset of abdominal s...

A rare case of diffuse lymphomatous polyposis of the gastrointestinal tract is reported in which the patient presented with abdominal pain, weight loss and bloody diarrhea. X-rays revealed multiple polyps involving the stomach, small intestine and colon. Biopsies confirmed the diagnosis of lymphomatous polyposis. The duration of symptoms and signs was 3 months. Diffuse lymphomatous polypos...

Although the majority of mesenchymal lesions of the gastrointestinal tract are neoplastic in nature, but nonneoplastic reactive processes may also involve the gastrointestinal tract and mesentery. Some more aggressive neoplasms located in same area, such as fibromatosis or gastrointestinal stromal  tumors  may  be  cause  of  diagnostic  confusion.  Reactive  nodular  fibrous  pseudo  tumor (RN...

few studies have been reported regarding probiotic properties of lactococcus lactis strains although they are extensively used as starter cultures in the production of dairy products. in this study 8 wild isolates of lactococcus lactis were evaluated in vitro with regard to resistance to simulated gastric and intestinal juices, adherence ability to caco-2 cells and ht29-mtx-e12 cell lines, anti...