title: Carpal tunnel syndrome produced by an organising haematoma within the anomalous second lumbrical muscle.
abstract: A rare case of carpal tunnel syndrome due to an anomalous second lumbrical muscle passing through the carpal tunnel is described. Its presentation as an organising haematoma in the anomalous muscle due to trauma precipitating the syndrome has not been reported in the literature previously. The anomalous muscle with its contained haematoma was excised with complete relief of symptom.
mesh_terms: D000328:Adult; D002349:Carpal Tunnel Syndrome / Q000209:etiology*; D006228:Hand Deformities, Congenital; D006406:Hematoma / Q000150:complications*; D006801:Humans; D008297:Male; D009132:Muscles / Q000002:abnormalities* / Q000601:surgery