title: Popliteal pseudoaneurysm caused by an adjacent osteochondroma: a case report and review of the literature.
abstract: A male 17-year-old with multiple hereditary exostoses presented with a mass in the distal left thigh several days after lifting weights. An arteriogram showed a popliteal artery pseudoaneurysm adjacent to a femoral osteochondroma. The osteochondroma was excised and the artery was repaired with a saphenous vein interposition graft. A review of the literature identified 23 similar reports. The average age of the patients was 21.3 years. Seventy-eight percent were men and half of the patients had multiple hereditary exostoses. Ten patients were initially misdiagnosed. The clinician should consider the diagnosis of pseudoaneurysm in a young patient with an osteochondroma and a mass about the knee.
authors.affiliation: Columbia University Medical Center, New York, New York, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Wiater
authors.forename: F A
authors.initials: FA
authors.lastname: Farley
mesh_terms: D000293:Adolescent; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D000792:Angiography; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods; D001859:Bone Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D015831:Osteochondroma / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D011150:Popliteal Artery; D016896:Treatment Outcome