[Bronchiolar-alveolar cancer in idiopathic fibrosing alveolitis].

An observation of bronchiolo-alveolar carcinoma that developed in the presence of the idiopathic fibrosing alveolitis (IFA) in a woman of 57, is described. The duration of IFA was 12 years. Diffuse pneumosclerosis with the development of the so-called "honey-comb" lungs was observed. Numerous confluent foci of the bronchiolo-alveolar carcinoma in both the lungs are found in the presence of alterations typical for IFA (diffuse sclerosis of alveolar septa, microcystosis). The cause of death was progressing respiratory deficiency.