title: Adventitial cystic disease of the popliteal artery.
abstract: In a 27-year-old man with claudication, computed tomography (CT) demonstrated a popliteal cyst and an adventitial cyst of the popliteal artery. Adventitial cystic disease was unexpected because the patient had a diminished pedal pulse on plantar flexion of the foot, a physical finding suggesting popliteal artery entrapment syndrome. CT was useful in the initial examination of this young patient with suspected popliteal vascular disease because of its accuracy and noninvasiveness.
mesh_terms: D000328:Adult; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011150:Popliteal Artery / Q000000981:diagnostic imaging*; D011151:Popliteal Cyst / Q000150:complications*; D013581:Synovial Cyst / Q000150:complications*; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000000981:diagnostic imaging* / Q000209:etiology