Rare Anorectal Neoplasms: Gastrointestinal Stromal Tumor, Carcinoid, and Lymphoma

Abstract

Several uncommon tumors occur in the anal canal such as gastrointestinal stromal tumors, carcinoids, and lymphoma. Increased clinical experience and advancements in molecular biology have improved the accuracy of pathologic diagnosis and guided treatment recommendations, which the author addresses in this article.