title: Extraskeletal osteosarcoma: an unusual presentation as tarsal tunnel syndrome.
abstract: Tarsal tunnel syndrome is a compressive neuropathy caused by intrinsic or extrinsic pressure on the posterior tibial nerve or one of its terminal branches. A mass in association with tarsal tunnel syndrome is most likely a benign tumor or tumor-like condition, although a more malignant tumor must be in the differential diagnosis. We report an unusual case of an extraskeletal osteosarcoma causing tarsal tunnel syndrome.
authors: University of Alabama School of Medicine, Birmingham, USA.
authors: K A
authors: KA
authors: Jaffe
authors: J D
authors: JD
authors: Wade
authors: F S
authors: FS
authors: Chivers
authors: G P
authors: GP
authors: Siegal
mesh_terms: D000328:Adult; D000671:Amputation, Surgical; D002111:Calcaneus / Q000473:pathology / Q000601:surgery*; D003937:Diagnosis, Differential; D005260:Female; D005534:Foot Diseases / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008940:Mitotic Index; D012516:Osteosarcoma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D012983:Soft Tissue Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D013641:Tarsal Tunnel Syndrome / Q000209:etiology* / Q000473:pathology / Q000601:surgery