Clear cell sarcoma of the penis.

The case of a 10-year-old boy in whom clear cell sarcoma occurred at the root of the penis is reported. The tumor cells were positive for S-100 protein, and ultrastructural examination showed the presence of melanosomes.

Colonic haemangioma--an unusual cause of lower gastrointestinal bleeding.

Cavernous haemangioma of the colon is a rare cause of colonic varices. It is a congenital vascular malformation of the large bowel often associated with cutaneous haemangiomata. A case is reported with this unusual pathology presenting with lower gastrointestinal bleeding.