The ring sign.
Konez
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Department of Radiology, Aultman Hospital, Northeastern Ohio Universities College of Medicine, Canton, OH 44710, USA.
D006801:Humans; D007238:Infarction / Q000000981:diagnostic imaging; D007511:Ischemia / Q000000981:diagnostic imaging; D008297:Male; D011877:Radionuclide Imaging; D012611:Scrotum / Q000098:blood supply / Q000000981:diagnostic imaging*; D013085:Spermatic Cord / Q000098:blood supply; D013086:Spermatic Cord Torsion / Q000000981:diagnostic imaging*; D013737:Testis / Q000098:blood supply