PURPOSE The purpose of this study was to describe the MR imaging findings of nodular fasciitis occurring in the head and neck region METHODS We retrospectively reviewed MR images of nodular fasciitis with pathologic correlation in 8 cases collected between August 2003 and October 2015 from our pathologic database.All of the MR images were retrospectively evaluated with respect to the location,size,relationship to fascia,signal characteristics,enhancement,and enhancement pattern by 2 experienced radiologists.RESULTS All patients presented with a palpable mass in the head and neck that was noticed 1–3 months earlier.There were 2 male and 6 female patients.Mean age was 40 years(range,21–59 years).Lesions ranged in size from 1.2 to 2.7 cm.All lesions were located in the head and neck region.Six lesions were subcutaneous in location,and 2 were intra-muscular.Lesions were consistently ovoid in shape with broad fascial contact.They exhibited internal homogenous low T1 and heterogeneous intermediate T2 signal with surrounding edema and slightly inhomogeneous enhancement.One lesions exhibited central nonenhancing areas.CONCLUSIONS MR imaging features of nodular fasciitis are generally non-specific and can be mistaken for a soft tissue sarcoma.This series,the largest MRI series of head and neck cases in the literature,confirms the predilection of nodular fasciitis for the head and neck.When a rapidly growing oval mass in contiguity with a fascial plane is recognized,the diagnosis of nodular fasciitis should be entertained.