Bronchoalveolar Lavage in Acute Drug-Hypersensitivity Pneumonitis Probably Caused by Phenytoin

Abstract
We have reported a case of acute hypersensitivity pneumonitis, probably caused by phenytoin, in which the results of bronchoalveolar lavage suggested a predominantly lymphocytic type of alveolitis, comparable to the alveolitis of sarcoidosis or chronic hypersensitivity pneumonitis.