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Pulmonary pathology at necropsy.

A simple method of perfusion of the lungs at necropsy was used in a series of 293 necropsies. The lungs were examined 24-48 hours after fixation. Two hundred and eighty-eight cases (98.3 percent) showed abnormalities and 92 of them (31 percent) showed multiple pathology. Unexpected pulmonary thrombo-embolic disease was found in 38 cases (12.9 percent) and the lungs were normal in only five cases (1.7 percent). The technique is simple and is advocated as a means of investigating lung pathology at necropsy.