Malakoplakia of the colon and rectum: report of a case and review of the literature.

A case of malakoplakia with primary involvement of the sigmoid colon and rectum in a 19-year-old man who died by extension of the disease to the bladder, right ureter, and retroperitoneum 4 years after the diagnosis was established is presented. A review of the 20 previously reported cases of malakoplakia of the colon is included also.