intestinal stem cells (iscs) are a group of rare cells located in the intestinal crypts which are responsible for the maintenance of the intestinal homeostasis and intestinal regeneration following injury or inflammation. lineage tracing experiments in mice have proven that iscs can repopulate the entire intestinal crypt. it is noteworthy that in such experiments, only a subset of intestinal cr...

intestinal tuberculosis is an uncommon presentation of tuberculosis (tb) and has clinicopathological similarities with crohn's disease. in regions where tb is endemic clinicians must aware of this condition and fully evaluate their patients when crohn's disease is diagnosed. we recommend all pathologic specimens be evaluate effectively for tb.smear,culture and pcr for mycobacterium.tuberculosis...

During the period of 1984-1995, nine young patients were admitted to Shiraz University Hospitals with a chief complaint of abdominal mass, weight loss and chronic diarrhea. Clinically, these cases were diagnosed as intestinal tuberculosis or lymphoma. Laparotomy revealed a huge mass involving the upper small intestine. Histologic sections showed diffuse infiltration of the intestinal wall w...

celiac disease also known as gluten-sensitive enteropathy is characterized by intestinal mucosal damage and malabsorption from dietary intake of wheat, rye or barley. symptoms may appear with introduction of cereal in the first 3 years of life. a second peak in symptoms occurs in adults during the third or forth decade and even as late as eight decade of life. the prevalence of this disease is ...

celiac disease can be accompanied with multiorgan involvement in addition to gastro-intestinal involvement. a 16-year-old young man - known case of celiac disease - was admitted because of exacerbation of gastrointestinal complaints. during further investigations, hypothyroidism and membranous glomerulonephritis were discovered. the patient was improved with a gluten-free diet and specific trea...

background: cryptosporidiumis known as an opportunist disease-causing agent in man in recent decades. it causes diarrhea and intestinal disorders in the immune deficit and immune competent individuals. this study was aimed to investigate the clinical characteristics of hiv/aids patients withcryptosporidiosisinfection. methods: this cross-sectional descriptive study was performed on 53 hiv/aids ...

he incidence of the diverticulum of the small bowel varies from 0.2-1.3% in autopsy studies to 2.3% when assessed on enteroclysis. it occurs mostly in patients in the 6th decade of their life. of all the small bowel diverticuli, jejunal diverticulum is the most common type. this rare entity is usually asymptomatic. however, they may cause chronic non-specific symptoms for a long period of time ...

background nonalcoholic fatty liver disease (nafld) is the most common cause of chronic liver disease in western world. however, nafld shows an increasing trend in china every year, which has attracted the attention of national health authorities. the previous studies have shown that nafld caused severe gastrointestinal motor disorders, but little is known about the interstitial cells of cajal ...