title: Image of the month. Tension occult pneumothorax.
authors: Department of Surgery, University of Calgary, Calgary, Alberta, Canada.
authors: Derek J
authors: DJ
authors: Roberts
authors: Chad G
authors: CG
authors: Ball
authors: Corina
authors: C
authors: Tiruta
authors: Andrew W
authors: AW
authors: Kirkpatrick
mesh_terms: D000063:Accidents, Traffic; D006801:Humans; D008297:Male; D008875:Middle Aged; D011030:Pneumothorax / Q000175:diagnosis* / Q000209:etiology* / Q000628:therapy; D013898:Thoracic Injuries / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy