Sir .—I read with great interest the report by Huseman and colleagues 1 on a child with prolactinoma. The letter was extremely valuable in pointing the efficacy of bromocriptine therapy even in large tumors. It is reassuring to read that this conservative approach to treatment is as efficacious in children as it is in adults. In their report, the authors referenced 11 other cases of prolactinoma in children 13 years of age or younger. It should be pointed out that other cases the have been reported. I searched the literature following the referral of a 13-year-old boy who exhibited hypopituitarism after the surgical removal of a nonsecretory pituitary adenoma. Richmond and Wilson 2 described 25 children and adolescents with pituitary adenomas, 11 of which were prolactinomas. The adenomas reprefound sented 33% of parasellar tumors found in their series of individuals younger than 20 years old. Nine of the 25 young_