title: Popliteal vein pseudoaneurysm: a case report.
abstract: This is a case report of an athletic, middle-aged man with a remote history of penetrating right leg trauma who developed a pulmonary embolism, thrombosis of the popliteal vein, a mass in the popliteal fossa, and acute ischemia of the right lower leg. At operation a thrombosed pseudoaneurysm was found arising from a defect in the popliteal vein with extrinsic compression of the popliteal artery. The defect was patched with autogenous vein and the long-term result was excellent. Pseudoaneurysm of the popliteal vein is a previously unreported entity. Popliteal venous aneurysms usually begin with phlebitic or pulmonary thromboembolic manifestations and present a diagnostic challenge. Venous aneurysms in general are uncommon pathologic entities with a diverse etiology; the current etiologic concepts and classification are briefly discussed in the text. A new differential diagnosis for masses in the popliteal fossa is introduced by this report.
mesh_terms: D000783:Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011152:Popliteal Vein; D013927:Thrombosis / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D014680:Veins / Q000637:transplantation