The deep sulcus sign.
Kong
Andrew
A
Department of Radiology, The Queen Elizabeth Hospital, Woodville Rd, Woodville, South Australia 5011, Australia. andrew_kong@hotmail.com
D003937:Diagnosis, Differential; D006801:Humans; D011030:Pneumothorax / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D016683:Supine Position