Abstract

A 10 1/2 year old boy presented with raised intracranial pressure and precocious puberty caused by a human chorionic gonadotrophin (HCG) secreting pineal germinoma. After craniospinal irradiation he improved clinically and his HCG concentration fell to an undetectable value. Two years later he remains well. Pineal germinomas are highly radiosensitive obviating the need for difficult surgery associated with high mortality.