Nodular Fasciitis, A Forgotten Entity

Background Nodular fasciitis is a benign pseudosarcomatous, self-limited, and reactive process. Based on its clinical and histological features - a fast-growing, solitary tumor with high cellularity and mitotic count - nodular fasciitis is considered to be a benign mimic of sarcoma. Methods We present four cases of nodular fasciitis and a review of the literature. Results The cases we present were initially misdiagnosed as sarcoma; two as dermatofibrosarcoma protuberans, one as atypical fibroxanthoma, and one as leiomyosarcoma. Conclusion Awareness of this entity among dermatologists is important as misdiagnosis may lead to unnecessary treatments associated with increased morbidity.