Inflammatory Myofibroblastic Tumor of the Gallbladder: A Review of a Potential Pitfall

Abstract

Inflammatory myofibroblastic tumor (IMT) is a unique neoplasm that rarely spreads to other parts of the body. IMT has a wide anatomical distribution, with the mesentery, omentum, retroperitoneum, and pelvis being the most commonly affected. A careful search in the English literature resulted in finding seven cases of IMT arising from the gallbladder. Gallbladder IMT presents a clinical challenge and is preoperatively diagnosed as a malignant gallbladder tumor in most cases. Histopathological assessment is essential for correct diagnosis and management. The prognosis is favorable, with most cases showing no signs of recurrence or metastasis. Even in patients who have had surgical resection, long-term follow-up is required.