A gastrointestinal stromal tumor in Meckel diverticulum in an 86-year-old patient.

Meckel diverticulum is the most common congenital anomaly of the gastrointestinal tract. Its prevalence is approximately 2% of the general population. Complications because of Meckel diverticula are rare and almost nil beyond the age of 40 years. This report details the case of an 86-year-old patient with Meckel diverticulum that perforated because of a tumoral lesion at its apex, also known as volvulus of Meckel diverticulum.