CT of cerebral abnormalities in precocious puberty

Area of Science:

• Pediatric Endocrinology
• Neuroradiology
• Neuroscience

Background:

• True precocious puberty involves premature activation of the hypothalamic-pituitary-gonadal axis.
• Distinguishing central precocious puberty from idiopathic forms is challenging using hormonal assays alone.
• Cerebral abnormalities are a known cause of central precocious puberty.

Purpose of the Study:

• To investigate the utility of high-resolution computed tomography (CT) in identifying cerebral causes of true precocious puberty.
• To correlate neuroradiologic findings with endocrinologic data and clinical presentation.
• To propose a practical neuroradiologic approach for evaluating children with precocious puberty.

Main Methods:

• A high-resolution CT study was conducted on 90 children diagnosed with true precocious puberty.
• Patients included 73 girls and 17 boys.
• Cerebral abnormalities were identified and characterized.

Main Results:

• Cerebral abnormalities were detected in 32 out of 90 children (35.6%).
• Specific abnormalities included hypothalamic hamartomas (17), optic chiasm lesions (6), and ventricular abnormalities (8), among others.
• The CT findings were correlated with endocrinologic profiles and the natural history of the condition.

Conclusions:

• High-resolution CT is a valuable tool for detecting cerebral abnormalities in children with true precocious puberty.
• Identifying these structural lesions can aid in differentiating central from idiopathic precocious puberty.
• A systematic neuroradiologic approach is essential for comprehensive evaluation.