## **Core Concept**
Prophylactic chemotherapy is considered in certain situations following the evacuation of a hydatidiform mole (H. Mole) to prevent the development of gestational trophoblastic neoplasia (GTN). The decision to use prophylactic chemotherapy depends on the risk factors for GTN.

## **Why the Correct Answer is Right**
The correct answer, ., implies that prophylactic chemotherapy is not indicated for all cases of H. Mole evacuation. This is because the risk of GTN varies among patients, and not all patients require prophylactic treatment. Prophylactic chemotherapy is usually considered for patients with high-risk features such as large uterine size for dates, high levels of beta-hCG, and presence of metastases.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because certain high-risk features do necessitate prophylactic chemotherapy.
- **Option B:** Similarly, this option is incorrect as it suggests a scenario where prophylactic chemotherapy might be considered.
- **Option C:** This option is also incorrect as it implies another scenario where prophylactic chemotherapy could be relevant.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the FIGO (International Federation of Gynecology and Obstetrics) scoring system is often used to assess the risk of GTN and the need for prophylactic chemotherapy. Patients with a score of 7 or more are considered high-risk.

## **Correct Answer:** . Low-risk cases.