Radiological findings in a 79-year-old patient diagnosed at our institution with a gastrointestinal stromal tumor (GIST) and symptoms of abdominal pain. CT scan shows the presence of gas in the gastric wall at the greater curvature and in left intrahepatic portal system (black arrows). (Courtesy of Prof. Angelo Vanzulli, Radiology Department, Grande Ospedale Metropolitano Niguarda, Milano, Italy).