Primary hyperparathyroidism is an uncommon condition in childhood that is easily amenable to surgical treatment with excellent results. Pathologically, the parathyroid glands may show generalized hyperplasia or, more commonly, adenoma formation, the latter frequently being seen in adolescence. Two girls with solitary parathyroid adenomas and predominantly skeletal manifestations resembling rickets are reported, underlining the need to suspect and appropriately investigate these children. The literature on the subject is reviewed.