Abstract: Desmoid-type fibromatosis (DTF) is a rare benign soft-tissue tumor originating in fibroblasts or myofibroblasts in fascia or muscle, tendon tissue, characterized by infiltrative growth, tendency to local relapse but no distant metastasis. Patients with DTF should be treated as early as possible, and complete surgical resection supplemented by radiation therapy or chemotherapy may reduce DTF recurrence rate. In this paper, a patient with DTF who was misdiagnosed as elastofibroma was reported. After complete surgical resection, the patient was discharged from hospital， and no recurrence was observed during follow-up.

Key words: Desmoid-type fibromatosis, 　Invasiveness, 　Elastofibroma, 　Misdiagnosis