Rare secondary hypertension caused by compound heterozygous mutations: a case report.

BACKGROUND

17α-Hydroxylase deficiency, a rare form of congenital adrenal hyperplasia, presents diagnostic and treatment challenges because of the limited number of cases reported.

CASE SUMMARY

This report discusses the case of a 17-year-old Chinese girl who suffered from unexplained dizziness, headaches, and high blood pressure. She had amenorrhoea during puberty and had been diagnosed with ovarian delay. Initially, she was diagnosed with hypertension and received three antihypertensive medications. However, her blood pressure remained poorly controlled. Gene sequencing revealed 17α-hydroxylase deficiency caused by compound heterozygous mutations in . One of the mutation sites, potentially novel, has not been reported previously. Subsequently, dexamethasone therapy was initiated, her blood pressure was controlled, and the symptoms disappeared. During the 1-year follow-up, her blood pressure remained normal, and the symptoms did not recur.

DISCUSSION

17α-Hydroxylase deficiency is a rare cause of secondary hypertension. Despite the low prevalence, it should not be overlooked in younger patients.