A case of inflammatory myofibroblastic tumor of the ileum preseneting with ileus

Abstract

Inflammatory myofibroblastic tumors (IMT) of the small intestine are rare. We report a case of IMT of the small intestine presenting with ileus. A 79-year-old man was admitted to our hospital with abdominal pain and vomiting. Abdominal CT showed a contrasted mass lesion in the small intestine and luminal dilatation of the oral side. A tumor of the small intestine with ileus was diagnosed and ileocecal resection was performed. Histological examination showed the tumor to be composed of fibroblast-like spindle cells with inflammatory cells. Immunohistochemically, the spindle cells were positive for smooth muscle actin. Herein, we address the diagnosis of IMT by histology and immunohistochemistry.