Ulnar artery aneurysm causing palmar mass in 5-month-old girl.
A 5-month-old previously healthy girl presented to the emergency department with a large palpable nontender mass in the hypothenar soft tissues of her left hand. US revealed a well-demarcated nonvascular soft tissue mass. Subsequent MR imaging showed a rim-enhancing mass with heterogeneous intrinsic signal characteristics. Abscess and necrotic tumor were the primary considerations. Surgery demonstrated a thrombosed aneurysm continuous with the ulnar artery system. The aneurysm was resected and the ulnar artery was ligated at the wrist.
Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA 98105, USA. rameshsiyer@gmail.com
Ramesh S
RS
Iyer
Douglas P
DP
Hanel
Brianna K
BK
Enriquez
Edward
E
Weinberger
D000783:Aneurysm / Q000150:complications* / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D013927:Thrombosis / Q000175:diagnosis* / Q000209:etiology*; D017535:Ulnar Artery / Q000000981:diagnostic imaging* / Q000473:pathology*; D014463:Ultrasonography