A "real heart sign".
Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Wilco
W
Tanis
Jesse
J
Habets
D000328:Adult; D006801:Humans; D008297:Male; D008476:Mediastinal Cyst / Q000175:diagnosis* / Q000601:surgery; D020775:Thoracic Surgery, Video-Assisted