**Question:** All are true about primary aldosteronism except:

A. Aldosterone production is increased due to autonomous activation of the adrenal cortex.
B. The primary cause is a benign adenoma of the adrenal cortex.
C. Blood pressure is typically normal or low in primary aldosteronism.
D. The condition is caused by a genetic predisposition.

**Core Concept:**
Primary aldosteronism is a hormonal disorder characterized by excessive production of aldosterone, a steroid hormone produced by the adrenal cortex. Aldosterone regulates electrolyte and fluid balance in the body. In primary aldosteronism, there is autonomous activation of the adrenal cortex leading to increased aldosterone production.

**Why the Correct Answer is Right:**
Primary aldosteronism is usually associated with increased aldosterone production. However, in option D, the condition is falsely attributed to a genetic predisposition. In reality, primary aldosteronism is typically caused by an adrenal adenoma or a benign tumor, which leads to autonomous activation of the adrenal cortex.

**Why Each Wrong Option is Incorrect:**
Option A is correct because aldosterone production is indeed increased in primary aldosteronism due to adrenal cortex activation.
Option B is correct because the primary cause is usually an adrenal adenoma, not a genetic predisposition.
Option C is incorrect because hypertension is a common feature of primary aldosteronism, not low blood pressure or normotension.
Option D is incorrect because the primary cause is an adrenal adenoma, not a genetic predisposition.

**Clinical Pearl:**
Primary aldosteronism is a crucial concept to understand for medical students and clinicians as it helps in diagnosing and treating patients with hypertension and electrolyte imbalances. It is essential to differentiate between primary and secondary aldosteronism, where aldosterone production is secondary to low potassium levels (hypokalemia) due to other underlying conditions. Correctly identifying the cause of hypertension is crucial for appropriate management and patient care.