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Central precocious puberty associated with duplicated pituitary: a case report and literature review
Kun Yang1, Yanmei Sang2,3, Li Dai1
1Baoding Hospital, Beijing Children's Hospital affiliated to Capital Medical University, Baoding, Hebei, China.
Insights
This case study details a young girl with pituitary duplication presenting with central precocious puberty (CPP). Treatment with gonadotropin-releasing hormone analogue (GnRHa) effectively delayed puberty and improved predicted adult height.
Area of Science:
- Endocrinology
- Pediatric Endocrinology
- Neuroendocrinology
Background:
- Pituitary duplication is a rare congenital anomaly associated with significant neurodevelopmental and craniofacial issues.
- Central precocious puberty (CPP) is an uncommon manifestation of pituitary duplication, with only eight cases previously reported.
- Early diagnosis and intervention are crucial for managing CPP and optimizing long-term outcomes.
Purpose of the Study:
- To report a case of pituitary duplication presenting with central precocious puberty (CPP) in a pediatric patient.
- To describe the clinical presentation, diagnostic findings, and treatment response in this rare condition.
- To highlight the efficacy of gonadotropin-releasing hormone analogue (GnRHa) therapy in managing CPP associated with pituitary duplication.
Main Methods:
- A 6-year-old girl presented with clinical signs of precocious puberty.
- Magnetic Resonance Imaging (MRI) revealed a duplicated pituitary gland.
- Gonadotropin-releasing hormone analogue (GnRHa) stimulation test confirmed CPP.
- Treatment with GnRHa was initiated.
Main Results:
- The patient exhibited classic symptoms of CPP, including breast development, accelerated growth, advanced bone age, and elevated hormone levels.
- MRI confirmed the presence of a duplicated pituitary gland.
- The GnRHa stimulation test was positive, indicating central precocious puberty.
- Following 2 years of GnRHa treatment, the patient showed delayed progression of sexual development, reduced CPP symptoms, and an improved predicted adult height.
Conclusions:
- Pituitary duplication can present with central precocious puberty (CPP) in pediatric patients.
- GnRHa therapy is an effective treatment for CPP in the context of pituitary duplication.
- This case underscores the importance of considering rare anatomical variations in the diagnosis and management of pediatric endocrine disorders.
Abstract:
Patients with duplicated pituitary often have severe neurodevelopmental abnormalities and craniofacial deformities. Till now, only eight patients diagnosed with duplicated pituitary showing barely central precocious puberty (CPP) are reported in the published literature. Herein, we report a 6-year-old and 3-month-old girl diagnosed with pituitary duplication presented with CPP. She has enlarged breasts for more than 1 year, accelerated height of linear growth, advanced bone age, increased hormone level, and increased volume of uterus and ovary. A duplicated pituitary gland was shown in the MRI. As the gonadotropin-releasing hormone analogue (GnRHa) stimulation test showed a positive result, the child was treated with GnRHa. After 2 years of follow-up, there was a delay in the progression of sexual development, a reduction in symptoms of precocious puberty, and an increase in predicted adult height.
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