Eosinophilic infiltration of the stomach.

An unusual case of eosinophilic infiltration of the proximal stomach with direct extension into the left hemidiaphragm, liver, and transverse colon is described. Because the lesion was unresectable, a trial of steroid therapy was begun, with an initially good clinical response. Subsequent extensive tumor necrosis and accompanying diaphragmatic perforation, autolysis of the left lower lung, and a chronic gastropleurocutaneous fistula led to death. This case underscores the aggressive nature which this "histologically benign" neoplasm can pursue.