Nodular Fasciitis of the Face Diagnosed by US-Guided Core Needle Biopsy: A Case Report

proliferation of myofibroblasts that appears as a rapidly growing solitary mass. The most common locations are the extremities; this is followed by trunk, head and neck in decreasing order. A literature search yielded only a few reports concerning the imaging findings of NF (15). Most of those reports are focused on the computed tomographic (CT) and magnetic resonance (MR) imaging findings of NF in the extremities and the neck. Ultrasonography (US) is the usual initial diagnostic modality for evaluating a palpable mass in the face. Thus, knowledge of the gray-scale and color Doppler US findings of NF is prerequisite for radiologists. A few reports (6-8) have stressed the role of the fine needle aspiration cytology (FNAC) in the cytologic diagnosis of NF in the extremities, breast and face, but the role of USguided core needle biopsy (CNB) in the histologic diagnosis of NF has not been discussed. We report here on a case of NF of the face along with gray-scale and color Doppler US and CT findings, and we report on the role of US-guided CNB for the histologic diagnosis of NF of the face.