BACKGROUND There are controversies about the importance of biopsies of normal colon mucosa in the investigation of patients with chronic diarrhea. STUDY Colonic and terminal ileum biopsies of 167 patients were reviewed. In 5 patients, used as controls, colonoscopy was done due to family history of colon cancer. RESULTS The 5 patients without symptoms had no histologic abnormalities. The his...

BACKGROUND The diagnostic yield in open access endoscopy has been evaluated which generally support the effectiveness and efficiency of open access endoscopy. With a few exceptions, diagnostic yield studies have not been performed in open access endoscopy for more specific conditions. Therefore, we conducted a study to determine the efficiency of open access endoscopy in the detection of micros...

Brachyspira pilosicoli, the causative agent of porcine intestinal spirochetosis, usually has hippurate-cleaving capacity. We have regularly isolated hippurate-negative B. pilosicoli from cases of porcine diarrhea. In this study, we show that these biochemically atypical B. pilosicoli isolates can be classified as B. pilosicoli. 16S ribosomal DNA was partially sequenced from eight hippurate-nega...

A treponema-like spirochete was detected in and isolated from adult Ixodes dammini, the incriminated tick vector of Lyme disease. Causally related to the spirochetes may be long-lasting cutaneous lesions that appeared on New Zealand White rabbits 10 to 12 weeks after infected ticks fed on them. Samples of serum from patients with Lyme disease were shown by indirect immunofluorescence to contain...

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 ...

Differential diagnoses for diarrhea in weaned pigs include salmonellosis, swine dysentery, porcine proliferative enteropathy (PPE) caused by Lawsonia intracellularis, rotavirus and coronavirus enteritis, postweaning colibacillosis, trichuriasis, coccidiosis,1 and porcine colonic spirochetosis (PCS) caused by Brachyspira pilosicoli.2 Postweaning diarrhea may be associated with multiple concurren...