[Nodular fasciitis of the upper arm in a sports marksman].

Nodular fasciitis is a benign, fibroproliferative, tumorlike lesion. Histological differentiation from sarcomas can be difficult. Surgical excision is most effective, recurrences are rare. This case report deals with the onset and natural course of nodular fasciitis in the upper arm of a marksman. When instructing young people in shooting, he had to pace different weapons against the upper third of his arm instead against the shoulder. Here a tender swelling developed. After extirpation he reported pain relief. A recurrence has not been observed so far.