All of the following statements about Gynecomastia are TRUE, EXCEPT:
**Core Concept**
Gynecomastia is a benign enlargement of breast tissue in males, often resulting from an imbalance between estrogen and androgen hormones. This condition can be caused by various factors, including hormonal changes, medication side effects, and underlying medical conditions.
**Why the Correct Answer is Right**
The correct answer will be the statement that does not accurately describe gynecomastia. Gynecomastia is characterized by an increase in breast tissue, which can be caused by an imbalance of sex hormones. Estrogen and androgen hormones play a crucial role in the development and maintenance of breast tissue. An increase in estrogen levels or a decrease in androgen levels can lead to the development of gynecomastia. This condition can also be caused by certain medications, such as digitalis and spironolactone, which can mimic the effects of estrogen in the body.
**Why Each Wrong Option is Incorrect**
* **Option A:** This statement is a common cause of gynecomastia, as it can lead to an increase in estrogen levels in the body.
* **Option B:** This statement is also true, as certain medical conditions, such as hypogonadism, can lead to an imbalance of sex hormones and cause gynecomastia.
* **Option D:** This statement is true, as certain medications, such as digitalis and spironolactone, can cause gynecomastia by mimicking the effects of estrogen in the body.
**Clinical Pearl / High-Yield Fact**
Gynecomastia can be a sign of an underlying medical condition, such as hypogonadism or liver disease, and should be evaluated by a healthcare professional to rule out any underlying causes.
**Correct Answer: D. Gynecomastia is caused by an increase in estrogen levels or a decrease in androgen levels.**