A case of transverse colon volvulus in a child and a review of the literature in Japan.

A case of transverse colon volvulus in a child with mental retardation and epilepsy is described. Previously reported cases in Japanese children are reviewed. A 540 degrees, counterclockwise volvulus of the transverse colon caused ischemia requiring resection. Possible factors related to pathogenesis are discussed, and diagnostic and therapeutic measures are outlined. Volvulus of the transverse colon is extremely rare in children.