World journal of clinical cases · 2022
X-linked recessive Kallmann syndrome: A case report.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Zhang Ping, Fu Jing-Yun
Аннотация
BACKGROUND: Kallmann syndrome (KS), also known as hypogonadotropic hypogonadism (HH) or olfactory-gonadal dysplasia, is a genetic condition in which the primary symptom is a failure to begin puberty or a failure to fully complete it. It occurs in both males and females and has the additional symptoms of hypogonadism and almost invariably infertility. The condition has a low prevalence that is estimated to be 1 in 4000 for male HH cases overall and 1:50000 for KS. It is three to five times more common in males than females. Whether this is a true sex imbalance or a reflection of how difficult KS/HH is to diagnose correctly in males vs females has yet to be fully established.
CASE SUMMARY: This article reports a 26-year-old male presenting with delayed puberty. The synthetic decapeptide luteinizing hormone-releasing hormone stimulation test showed that the secretion levels of follicle-stimulating hormone and luteinizing hormone were delayed. The eigengenes commonly associated with idiopathic HH (IHH) were screened, and an X-linked recessive (KAL-1) mutation was found. His gonadotropin and testosterone levels increased significantly after pulsatile gonadotropin-releasing hormone (GnRH) subcutaneous therapy by pump. A relevant literature review on the recent advances in the diagnosis and treatment of KS and genetic counseling was conducted.
CONCLUSION: KS is caused by a KAL-1 mutation that follows an X-linked recessive inheritance pattern. Pulsatile GnRH subcutaneous therapy by pump was effective in this patient.
CASE SUMMARY: This article reports a 26-year-old male presenting with delayed puberty. The synthetic decapeptide luteinizing hormone-releasing hormone stimulation test showed that the secretion levels of follicle-stimulating hormone and luteinizing hormone were delayed. The eigengenes commonly associated with idiopathic HH (IHH) were screened, and an X-linked recessive (KAL-1) mutation was found. His gonadotropin and testosterone levels increased significantly after pulsatile gonadotropin-releasing hormone (GnRH) subcutaneous therapy by pump. A relevant literature review on the recent advances in the diagnosis and treatment of KS and genetic counseling was conducted.
CONCLUSION: KS is caused by a KAL-1 mutation that follows an X-linked recessive inheritance pattern. Pulsatile GnRH subcutaneous therapy by pump was effective in this patient.