Intestinal schistosomiasis--a case report.

A 61-year old male, an ex-pilot of an agricultural aeroduster, with a history of a Schistosoma mansoni infection following an accident in Sudan in 1986 (an exposure to the contents of a polluted water reservoir) was diagnosed three times due to abdominal complaints. The primary diagnosis was Leśniowski-Crohn's disease. Only three years later was an appropriate diagnosis made based on histopathology of sections of the colon.