bone age advancement
Condition where skeletal maturation exceeds chronological age, indicating accelerated bone development.
Full Definition
A radiological finding where the degree of skeletal maturation, as assessed by bone age X-rays, is significantly ahead of the patient's chronological age. This condition suggests exposure to excess androgens, growth hormone, or thyroid hormones during development. Bone age advancement is commonly seen in precocious puberty, congenital adrenal hyperplasia, hyperthyroidism, and McCune-Albright syndrome. The degree of advancement helps predict final adult height and guides treatment decisions. Significant advancement may indicate the need for intervention to preserve growth potential, while mild advancement may be monitored without treatment.
Usage
Usage note: Always specify the degree of advancement in years or standard deviations.
In Context
- "The patient showed 2.5 years of bone age advancement, suggesting androgen excess." — Radiology report
- "Bone age advancement in precocious puberty may compromise final adult height." — Clinical research paper