Stomach GIST Presenting as a Liver Abscess

Gastrointestinal stromal tumor (GIST) is the most common nonepithelial neoplasm of the gastrointestinal (GI) tract, constituting only 1 % of primary GI malignancies [1–4]. GIST is not restricted to the GI tract and may have extra gastrointestinal involvement [1]. Common primary sites include the stomach (50–70%); small intestine (30–45%); colon, rectum, and anus (10–15 %); mesentery and peritoneum (<10 %); and the esophagus (<5 %) [5–7]. Initially presenting as a liver abscess and Streptococcus intermedius bacteremia, we describe a rare case of GIST which also exhibited synchronous primary rectal and prostate adenocarcinoma tumors.