Unilateral pleural effusion as the presenting feature of ovarian hyperstimulation syndrome

Ovarian hyperstimulation syndrome occurred in a 32-year-old woman who presented with symptoms from a large unilateral pleural effusion which was the predominant feature in her case. The aetiology of the effusion was initially uncertain in view of the relative absence of ascites suggesting that the effusion arose because of a primary pleural abnormality.