[Benign tumors of the pleura]

The authors report a case of benign tumour of the pleura in a 74 year old woman. This is a pediculated tumour of the right base posteriorly above the diaphragm, the pleural nature of which was recognised before surgery and which, microscopically, proved to be a localized, benign mesothelioma of fibroblastic type. Benigh tumours of the pleura are rare but raise two interesting problems: that of their precise origin which is debated, and their prognosis; the possibility of relapse should be borne in mind.