title: Adventitial cystic disease of the radial artery--two case reports and a review.
abstract: A 29-year-old female presented with pain and a palpable  mass in the left wrist. Imaging demonstrated a multiloculated  cystic mass adjacent to the radial aspect of the scaphoid,  which was intimately associated with and appeared to arise  from the wall of the radial artery and its dorsal branch.  The mass was surgically resected. The histological analysis  confirmed the presence of adventitial cystic disease (ACD)  of the radial artery. In addition, within a year time span, a  second 34-year-old male patient presented with a palpable  mass in the right hand. Imaging demonstrated a cystic mass  encasing the dorsal carpal branch of the radial artery and  its terminal vessels to the thumb and index finger. The diagnosis of ACD was raised based on MR imaging. Histological  analysis confirmed the presence of an adventitial cyst. ACD  of the arteries is a rare disorder of unknown etiology, which  usually involves the popliteal artery. Less common sites of  involvement include the external iliac, common femoral,  radial, and ulnar arteries. To our knowledge, there have  only been six previous case reports of adventitial cystic  disease involving the radial artery. The imaging features,  histology, differential diagnosis, pathogenesis, and treatment  are discussed.
authors.affiliation: Department of Radiology, NYU Hospital for Joint Diseases, 301 East 17th Street, New York, NY 10003, USA. Luis.Beltran@nyumc.org
authors.forename: Luis S
authors.initials: LS
authors.lastname: Beltran
authors.forename: Jenny T
authors.initials: JT
authors.lastname: Bencardino
authors.forename: Panna
authors.initials: P
authors.lastname: Desai
authors.forename: Nader
authors.initials: N
authors.lastname: Paksima
mesh_terms: D000328:Adult; D063194:Adventitia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D003560:Cysts / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D017534:Radial Artery / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D011859:Radiography; D016896:Treatment Outcome; D014652:Vascular Diseases / Q000175:diagnosis / Q000209:etiology / Q000601:surgery