title: Lung torsion: radiographic findings in nine cases.
abstract: Torsion of the lung, although relatively rare, can occur under three sets of circumstances: spontaneously, usually in association with some other pulmonary abnormality; following traumatic pneumothorax; and as a complication of thoracic surgery. Nine cases of pulmonary torsion were analyzed. The radiographic findings are a collapsed or consolidated lobe that occupies an unusual position at plain radiography, at plain or computed tomography, at angiography, or at bronchography; hilar displacement in a direction inappropriate for that lobe; alteration in the normal position and sweep of the pulmonary vasculature; rapid opacification of an ipsilateral lobe following trauma or thoracic surgery; marked change in position of an opacified lobe on sequential radiographs; bronchial cutoff with no evidence of a mass; or lobar air trapping. Mortality is high if the torsion goes unrecognized and surgical fixation is delayed.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007223:Infant; D008171:Lung Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011859:Radiography; D013898:Thoracic Injuries / Q000150:complications; D013903:Thoracic Surgery; D014102:Torsion Abnormality