Bromocriptine treatment of prolactinoma restores growth hormone secretion and causes catch-up growth in a prepubertal child.

Unlabelled: A 13-year-old Japanese boy with pituitary prolactinoma whose growth had been retarded for more than 2 years was treated with bromocriptine alone for 140 weeks. After treatment, the serum level of prolactin, which was 1200 ng/ml before treatment, returned to normal and the pituitary tumour seen on the initial brain MRI had rapidly decreased in size after 16 weeks of treatment. Thereafter, his height improved (from -2.