A case of intraabdominal myofibroblastic tumor with aggressive behavior

Inflammatory myofibroblastic tumor (IMFT) or inflammatory pseudotumor can occur in any part of the body. The source of these lesions is unclear. It has been suggested that the neoplastic spindle cell component may be derived from a subtype of cells of the accessory immune system called fibroblastic reticulum cells. There is no major series of these lesions, and they can occur throughout the body. The imaging characteristics of these lesions have been poorly described in pulmonary lesions. In the abdomen and retroperitoneum, they can often appear much more diffuse and infiltrative. A 14-year-old female was operated because of an intraabdominal mass, measuring 12x10x11 cm in diameter, in 2004. The histopathology of the mass was reported as IMFT or inflammatory pseudotumor. She relapsed after 9 months. She was operated several times, and chemotherapy and radiation therapy were administered at different times. She remains under follow-up.