The Pleural Form of Primary Cancer of the Lung

¹ The Phthisiological Clinic of University and from the Institute "Principi di Piemonte," Naples, Italy.

The pleural form of the primary cancer of the lung constitutes an infrequent, but absolutely particular type among the neoplastic lung processes. Its chief characteristic is that the neoplastic tissue, instead of involving the depth of the parenchyma of the lung, is almost entirely spread upon the pleural surface, becoming very similar to primary cancer of the pleura.

The histological analysis allows to differentiate it by finding cellular elements of broncho-alveolar derivations.

The authors have collected five cases of the pleural form out of a total group of 82 cases of primary cancer of the lung: in one of these a biopsy through pleuroscopy established the right diagnosis.