Carcinoid tumors in Meckel's diverticula.

Coexisting carcinoid tumors within Meckel's diverticula have been described rarely. Our experience with an elderly patient with this unusual pathologic combination led to an extensive review of the world's literature. This review documents that carcinoid tumors are the most commonly reported tumors of Meckel's diverticula, with risks of symptoms and metastases similar to those described with primary small intestinal carcinoid tumors.