[Malignant mesothelioma of the pleura with an unusual course].

An unusual case of malignant mesothelioma of the pleura in a man aged 73 years is described. Four years after debut of symptoms a tumour emerged at the site of a previous pleural drainage and grew during the next two years to the size of a man's head. After removal of the tumour, the histological diagnosis was reviewed and confirmed. Six and a half years after the first diagnosis, the patient is still alive and in a reasonable condition in spite of bilateral pleural involvement.