Pulmonary lesions in atypical measles.

Atypical measles is a well-described entity which has a high frequency of pulmonary involvement. Resolution and shrinkage of the pneumonic infiltrates into nodular mass-like lesions have been cited only once before. Three cases of atypical measles pneumonia are described which demonstrate these pulmonary nodular sequelae. In one of the cases examined a nodular residuum has now persisted for five months. Atypical measles pneumonia should be considered as a diagnostic possibility before invasive investigations are performed in a patient who has a pulmonary nodule.