Precocious puberty due to postmeningitic hydrocephalus.

A case of precocious puberty due to postmeningitic hydrocephalus was presented. Concentrations of serum gonadotropins and estradiol were found to be elevated, and the response of LH to LHRH was also high, similar to that in the late pubertal stage. CT scanning demonstrated marked dilatation of the third ventricle. It was considered that this was one of the factors which caused the precocious puberty.