Lipoma of the diaphragm. Report of a case.

A lipoma of the diaphragm was found at surgery in a 69-year-old man. Postmortem examination offered an unusual opportunity for radiological/pathological correlation. Diaphragmatic lipomas are usually asymptomatic and present radiographically as smooth, rounded masses which generally arise from the posterolateral portion of one hemidiaphragm. They may appear less radiopaque than would be expected of a lesion that size. Certain features of this case suggest that the lipoma may have been the result of chest trauma.