The onion ring sign.
Department of Radiology, Wake Forest Baptist Medical Center, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, 27157, NC, USA, jonathan.m.day@gmail.com.
Jonathan M
JM
Day
Raymond B
RB
Dyer
D000328:Adult; D003560:Cysts / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D013733:Testicular Diseases / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D055815:Young Adult