Inflammatory Myofibroblastic Tumor (IMT): Report of 8 cases at uncommon sites with literature review

Inflammatory myofibroblastic tumor (IMT) is a lesion of unknown etiology, originally described in lung but can be found at other sites also. Their presence in gall bladder, soft tissue and mesentery is rare. Eight cases of IMT is reported at abnormal sites of mesentery, gall bladder, soft tissue in thigh, disseminated form of IMT involving gall bladder adhered with liver, pylorus and 1st part of duodenum. The characteristic histopathology and immunohistochemistry confirmed the diagnosis of IMT in these cases. Diagnosis of IMT can be challenging and need a multi-disciplinary approach for the correct diagnosis and treatment.