[Neoplastic alveolitis complicating chronic pneumonia]

The author describes two observations on cancerous alveolitis and bronchiolitis developed in the foci of chronic (interstitial) pneumonia under squamous metaplasia and anaplasia of epithelial cells of alveoli and bronchioli. Two cases were diagnosed by roentgenologists, one case was found pathoanatomically; in the first two cases the patients died due to grave hypoxia and cardiopulmonary insufficiency, in the third case-due to encephalomalacia in ischemic brain disease. Cancerous alveolitis and bronchiolitis made 2.4% to all lung cancer, the disease shows an acute course, the duration of the lesion-4-6-months.