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.

Keywords: Aneuploidy; surgery; chemotherapy; myofibroblastic tumor