[Histologic aspects of pleural mesothelioma]

The authors present four cases of malignant mesothelioma of pleura. Mean of age of our patients is 34 years. Two of them are men, the two others are women. The histologic study shows that our cases are represented by one of epithelial type, one of sarcomatoïd type and the two last of mixed biphasic type. The authors insist, in the basis of literature data, in the importance of the positive and differential diagnosis concerning the primitive and secondary epithelial tumors of the lung. The means of diagnosis are represented currently by cytology and histopathology and also by cytochemistry and immunohistochemistry.