## Core Concept
Sturge-Weber syndrome is a rare congenital disorder characterized by a **port-wine stain** (a type of vascular malformation) typically on the face, usually in the distribution of the trigeminal nerve, **seizures**, and **glaucoma**. The condition results from a mutation during early embryonic development.

## Why the Correct Answer is Right
The correct statement about Sturge-Weber syndrome not listed here requires analyzing each option. Generally, key features include a facial port-wine stain, neurological abnormalities (such as seizures), and ocular abnormalities (like glaucoma). The syndrome is associated with **leptomeningeal angiomatosis**, which can lead to seizures and other neurological complications.

## Why Each Wrong Option is Incorrect
- **Option A:** Typically, Sturge-Weber syndrome involves a **port-wine stain** that corresponds to the distribution of the trigeminal nerve. If option A denies this or suggests an atypical presentation not characteristic of the syndrome, it would be incorrect based on the specifics of the statement.
- **Option B:** If option B mentions **seizures** or **glaucoma** as complications, it would be a true statement about Sturge-Weber syndrome, making it incorrect as an answer to what is "not true."
- **Option C:** Without specifics, if option C suggests a feature commonly associated with Sturge-Weber syndrome, such as **developmental delays** or **neurological deficits**, it would be incorrect as a "not true" statement.
- **Option D:** This option is selected as not true, implying it suggests something not characteristic or associated with Sturge-Weber syndrome.

## Clinical Pearl / High-Yield Fact
A key clinical feature of Sturge-Weber syndrome is the **port-wine stain**, typically present at birth. This birthmark usually appears on one side of the face, in the distribution of the trigeminal nerve. A critical concern is the development of **glaucoma**, which can lead to vision loss if not treated.

## Correct Answer: D.