Gastrointestinal Stromal Tumour of Meckel's Diverticulum Causing Perforation and Peritonitis: A Case Report.

A 23-year-old man presented with history of fever and pain in the right lower abdomen. He was diagnosed to have acute appendicitis with perforation and was taken up for emergency laparotomy after resuscitation. There was pus in the right iliac fossa and a tumor at the fundus of Meckel's diverticulum, which had perforated. Appendix was found to be normal. The histopathology examination showed it to be gastrointestinal stromal tumor of Meckel's diverticulum. The gastrointestinal stromal tumor causing Meckel's diverticulum perforation and peritonitis is very rare, and prior to this indexed case, only two such cases have been reported in the literature.