Difficulty: Easy
Correct Answer: Gigantism
Explanation:
What is being asked?
The condition caused by excessive growth hormone (GH) secretion from the anterior pituitary during childhood.
Given data
Concept/Approach
If GH excess occurs before epiphyseal closure, it produces excessive linear bone growth (height) → termed gigantism. If GH excess occurs after plate closure in adults, it causes acral/soft-tissue enlargement → acromegaly.
Step-by-step reasoning
1) Identify life stage: child → growth plates still open.2) GH stimulates IGF-1 → increased endochondral ossification at growth plates.3) Outcome: extraordinary height and proportional limb growth → definition of gigantism.
Verification/Alternative
Acromegaly (adult) shows enlarged hands/feet/jaw without tall stature; dwarfism and cretinism are due to hormone deficiency or hypothyroidism.
Common pitfalls
Final Answer
Gigantism
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