## Core Concept
Brachytherapy for carcinoma of the cervix involves the placement of radioactive material directly into or near the tumor to deliver a high dose of radiation locally while minimizing exposure to surrounding healthy tissues. The techniques are chosen based on the stage and extent of the disease.

## Why the Correct Answer is Right
The correct answer, , refers to the technique that does not belong to the commonly used brachytherapy methods for cervical cancer. Traditional brachytherapy techniques for cervical cancer include intracavitary brachytherapy (where the radioactive source is placed within the uterine cavity and sometimes in the vagina) and interstitial brachytherapy (where the radioactive sources are implanted directly into the tumor). The most common types are:
- **Intracavitary brachytherapy (e.g., Fletcher-Suit applicator)**: Involves placing a radioactive source in the uterine cavity and sometimes in the vagina.
- **Interstitial brachytherapy**: Involves implanting radioactive sources directly into the tumor.

## Why Each Wrong Option is Incorrect
- **Option A:** is a recognized method.
- **Option B:** is also a valid technique.
- **Option D:** another accepted approach.

## Clinical Pearl / High-Yield Fact
A key point to remember is that the choice of brachytherapy technique depends on the tumor's size, location, and extent of spread. For instance, interstitial brachytherapy is often used for larger tumors or those that extend parametrically.

## Correct Answer: D.