**Question:** Gynaecomastia may be seen in patient with all except-

A. Hypothyroidism
B. Androgen deficiency
C. Estrogen excess
D. Liver disease

**Core Concept:** Gynaecomastia is a condition characterized by the enlargement of the breast tissue in males. It can be caused by various factors, including hormonal imbalances, liver diseases, and medications.

**Why the Correct Answer is Right:** Liver disease is associated with elevated liver enzymes and potential liver dysfunction, which can lead to hormonal imbalances. Therefore, liver disease is a potential cause of gynaecomastia.

**Why Each Wrong Option is Incorrect:**

A. Hypothyroidism (underactive thyroid gland): Hypothyroidism does not typically lead to gynaecomastia, as it primarily affects thyroid function and hormone levels.
B. Androgen deficiency (low testosterone): While androgen deficiency can lead to gynecomastia in some cases, it is not the only reason for this condition, as other factors like estrogen excess can also cause gynaecomastia.
C. Estrogen excess (high estrogen): Gynaecomastia can be caused by excess estrogen, which is a female sex hormone, and it is not a typical cause in males.

**Clinical Pearl:** Gynaecomastia may be observed in various medical conditions and should be evaluated by a healthcare professional. A thorough clinical history and examination are essential to identify the underlying cause, which may involve hormonal assessments and liver function tests.

**Correct Answer:** D. Liver disease

**Explanation:** Liver disease is the correct answer because it is the only incorrect option that can lead to hormonal imbalances, potentially causing gynaecomastia through the elevation of estrogen levels. The other options primarily affect thyroid function, androgen levels, or are not the primary cause of gynaecomastia in males.