## Core Concept
Turner syndrome is a genetic disorder that affects females, where one of the X chromosomes is missing or partially deleted. The condition is characterized by short stature, gonadal dysgenesis, and various physical and developmental abnormalities. Key features often include short stature, delayed puberty, and infertility.

## Why the Correct Answer is Right
The correct answer, , is not a feature of Turner syndrome because individuals with Turner syndrome typically present with short stature, not tall stature. Features like webbed neck, low-set ears, and short fourth metacarpals are common, but tall stature is not associated with the condition.

## Why Each Wrong Option is Incorrect
* **Option A:** is a feature of Turner syndrome. Individuals often have a webbed neck due to fetal edema.
* **Option B:** is a feature of Turner syndrome. Short fourth metacarpals are a classic sign.
* **Option C:** could potentially represent a feature or associated condition, but without specifics, it's hard to directly refute; however, the question focuses on what is "not a feature."

## Clinical Pearl / High-Yield Fact
A key clinical pearl for Turner syndrome is that patients are at increased risk for cardiovascular anomalies, particularly bicuspid aortic valve and coarctation of the aorta. Early diagnosis and management are crucial.

## Correct Answer: D. Tall stature.