title: Intramural leiomyosarcoma of the dorsal pedal vein: a clinical mimicry of ganglion.
abstract: A 75-year-old woman presented with a ganglion-like nodule on the dorsal aspect of the right foot. A 2.5 x 1.5 cm, saccular and malleable tumor, that was in continuity with the dorsal venous arch, was completely resected. It was characterized by a diffuse intramural and circumferential, low grade, malignant, smooth muscle proliferation with an aneurysmal-like luminal space. No endoluminal or periadventitial invasive neoplastic component was present. The patient had no evidence of disease at 58-month follow-up. This is the first reported case of venous leiomyosarcoma in the foot. Furthermore, the intramural confinement of neoplastic growth is a unique observation.
authors.affiliation: Department of Pathology, McGill University, Montreal, Quebec, Canada.
authors.forename: L R
authors.initials: LR
authors.lastname: Bégin
authors.forename: P
authors.initials: P
authors.lastname: Guy
authors.forename: B
authors.initials: B
authors.lastname: Mitmaker
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D005528:Foot / Q000098:blood supply*; D005534:Foot Diseases / Q000175:diagnosis* / Q000601:surgery; D005728:Ganglia, Sympathetic; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis* / Q000601:surgery; D016491:Peripheral Vascular Diseases / Q000175:diagnosis; D014680:Veins