Solitary Rectal Ulcer Syndrome in Childhood: A Rare, Benign, and Probably Misdiagnosed Cause of Rectal Bleeding. Report of Three Cases

Solitary rectal ulcer syndrome is an uncommon and often underdiagnosed condition that usually presents with hematochezia, mucous discharge, and tenesmus. Its etiology is unknown but it seems related to excessive straining with defecation. Prolonged efforts force the anterior rectal mucosa into the anal canal with strangulation and appearance of congestion, edema, and ulceration. Histologic findings (fibromuscular obliteration of lamina propria...