Prognostic factors in diffuse malignant pleural mesothelioma. A study of 167 patients.

The existence of large shipyards accounts for the particular frequency of pleural mesothelioma in the Nantes-St. Nazaire region of France. From 1955 to 1985, 167 cases were diagnosed.

[Benign pleural pathology of asbestos].

The most frequent benign lesions of the pleura created by asbestos are fibro-hyaline plaques, i.e. thick areas of collagen located on the parietal pleura and gradually becoming calcified.