Multiple juvenile polyposis. A report of 2 cases.

Two cases of multiple juvenile polyposis in black boys aged 10 and 12 years are described. There was no history of polyposis in the families. In both patients the rectosigmoid part of the large bowel mainly was involved and was treated by colectomy. The first case showed a segment of sigmoid colon studded with polyps, which were predominantly sessile. The second case showed polypoid lesions throughout the sigmoid colon and rectum. This rare phenomenon has been infrequently reported among black people.