[Demons-Meigs syndrome caused by ovarian goiter].

In a 66-year old woman, progressive worsening of an exertional dyspnoea revealed the presence of an abundant right pleural effusion. The patient had a right ovarian mass, highly suspect at ultrasonography. Thoracoscopy showed a macroscopically normal pleura with normal cytology and histology. The ovarian tumour was very irregular, but it was found to be benign at histology. This gonadic goitre of the right ovary was entirely removed, and the pleural effusion did not recur.