MR imaging of nodular fasciitis arising in the Hoffa fat pad

Nodular fasciitis is a benign proliferative fibroblastic tumor arising most often in subcutaneous tissues or deep fascial planes. The lesion is under-reported in radiological literature. There are only a few reports on MR Imaging of nodular fasciitis. Location in the Hoffa fat pad is not described in the literature. We will present the case of a patient with nodular fasciitis in this area. The MR features will be discussed.