Pathologic findings and long-term sequelae in Legionnaires' disease.

A recently recognized sporadic case of Legionnaires' disease occurring in North Carolina is described. Diagnosis was made by special serologic studies performed at the Center for Disease Control, Atlanta. The light-microscopic and electron-microscopic findings are described. Organisms consistent with the etiologic agents of Legionnaires' disease were seen by electron microscopic examination. An eight-month follow-up in this case still showed the presence of some radiologic abnormalities of the pulmonary parynchema, as well as abnormal data on tests of pulmonary function.