Simulation of @entity694 by XXXX .

@entity1 @entity2806 @entity63 @entity5 @entity189 @entity694
Nine cases of @entity63 are presented in which an initial diagnosis of @entity189 was made from roentgenographic, endoscopic, or intraoperative appearance of the lesion. The clinical features were insufficient to differentiate @entity63 from @entity189 . In 7 @entity1 a barium enema was interpreted as, or consistent with, @entity189 . In 3 of these @entity1 colonoscopy also suggested @entity5 . In 2 @entity1 , endoscopy suggested a @entity5 but no barium enema was performed. Endoscopic biopsies when performed were negative for @entity5 . Three @entity1 were considered to have @entity5 from the gross appearance of the lesion at laparotomy. Routine use of both barium enema and colonoscopy in @entity1 with suspected @entity694 will usually identify the ischemic nature of lesions incorrectly diagnosed by one technique or the other. In the uncommon @entity1 in whom both studies suggest a @entity5 , but biopsy specimens are negative for @entity5 , repeat studies 7-10 days later may identify the evolving nature of @entity2806 and obviate the need for surgery. When no changes are seen, prompt laparotomy is indicated.
