Clinical scenario: Short stature | Normal growth velocity | Bone age = Chronological age
A 4-year-old boy presents with short stature. His height is on the 0.4th centile, but his growth velocity over the past year has been normal (5 cm/year). Mid-parental height centile is consistent with his current centile. Bone age equals chronological age. Which is the most likely diagnosis?
A. Growth hormone deficiency
B. Familial short stature
C. Constitutional delay of growth and puberty
D. Hypothyroidism
E. Turner syndrome
Correct answer & Explanation:
Answer: B — Normal velocity, bone age = chronological age, and height consistent with mid-parental centile all point to familial short stature. Constitutional delay classically shows delayed bone age; GH deficiency and hypothyroidism show reduced velocity.
