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CDGP — RACP Paediatrics MCQ

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ModerateEndocrinologyCDGPRACP Paediatrics

A 14-year-old boy has delayed puberty. He has no signs of puberty (Tanner stage 1). His height is on the 10th centile. His bone age is delayed by 3 years. His father also had late puberty. What is the most likely diagnosis?

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Correct answer: A — Constitutional delay of growth and puberty

CDGP is the most common cause of delayed puberty, especially in boys. Family history of late puberty is typical. Bone age is delayed. Growth and puberty eventually catch up. Short courses of low-dose testosterone can be offered to boys for psychosocial benefit while awaiting spontaneous puberty.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: Delayed Puberty