title: Reversed Palmaris Longus Muscle Causing Volar Forearm Pain and Ulnar Nerve Paresthesia.
abstract: A case of volar forearm pain associated with ulnar nerve paresthesia caused by a reversed palmaris longus muscle is described. The patient, an otherwise healthy 46-year-old male laborer, presented after a previous unsuccessful forearm fasciotomy for complaints of exercise exacerbated pain affecting the volar forearm associated with paresthesia in the ulnar nerve distribution. A second decompressive fasciotomy was performed revealing an anomalous "reversed" palmaris longus, with the muscle belly located distally. Resection of the anomalous muscle was performed with full relief of pain and sensory symptoms.
authors.affiliation: Department of Orthopaedics, Beth Israel Deaconess Medical Center, Boston, MA.
authors.forename: Abhiram R
authors.initials: AR
authors.lastname: Bhashyam
authors.affiliation: Department of Orthopaedics, Beth Israel Deaconess Medical Center, Boston, MA.
authors.forename: Carl M
authors.initials: CM
authors.lastname: Harper
authors.affiliation: Department of Orthopaedic Surgery & the Division of Plastic Surgery, Beth Israel Deaconess Medical Center, Boston, MA. Electronic address: matt.iorio@bidmc.harvard.edu.
authors.forename: Matthew L
authors.initials: ML
authors.lastname: Iorio
mesh_terms: D019299:Decompression, Surgical; D015444:Exercise; D000071938:Fasciotomy; D005542:Forearm / Q000294:innervation / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000002:abnormalities* / Q000601:surgery; D059352:Musculoskeletal Pain / Q000209:etiology* / Q000601:surgery; D010292:Paresthesia / Q000209:etiology* / Q000601:surgery; D020424:Ulnar Neuropathies / Q000209:etiology* / Q000601:surgery; D038062:Upper Extremity Deformities, Congenital / Q000150:complications* / Q000601:surgery
keywords: Anomalous muscle; case report; palmaris longus