What is seen in acromegaly:
**Core Concept**
Acromegaly is a hormonal disorder caused by excess growth hormone (GH) production, typically due to a pituitary tumor. This excess GH leads to the overproduction of insulin-like growth factor 1 (IGF-1), which in turn causes the characteristic symptoms of acromegaly.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of acromegaly. The excess GH and IGF-1 stimulate the growth of cartilage and bone, leading to an increase in the size of extremities, particularly the hands, feet, and face. This results in the characteristic features of acromegaly, including a protruding jaw, enlarged nose, and thickening of the skin.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not related to acromegaly. It is a distractor that may be associated with another endocrine disorder.
* **Option B:** This option is incorrect because it is a feature of hypothyroidism, not acromegaly. In hypothyroidism, the skin may become dry and thickened, but this is not a characteristic of acromegaly.
* **Option C:** This option is incorrect because it is a feature of Cushing's syndrome, not acromegaly. In Cushing's syndrome, the skin may become thin and fragile, but this is not a characteristic of acromegaly.
**Clinical Pearl / High-Yield Fact**
A key feature of acromegaly is the enlargement of the hands and feet, particularly the fingers and toes. This is due to the overproduction of IGF-1, which stimulates the growth of cartilage and bone.
**Correct Answer: C. Enlargement of hands and feet.**