**Question:** True about complete mole is

A. Complete moles are benign growths
B. Complete moles can cause symptoms like pain and bleeding
C. Complete moles are associated with an increased risk of developing invasive cancer
D. Complete moles are caused by an abnormal chromosomal pattern

**Core Concept:** A complete mole, also known as a hydatidiform mole, is a type of abnormal pregnancy characterized by the formation of a gestational sac without an embryo (no fetal tissue) and a varying amount of hydatidiform moles. Complete moles occur when there is a single abnormal chromosome set, typically a disrupted X and Y chromosome combination, leading to a female fetus with no fetal tissue.

**Why the Correct Answer is Right:** Complete moles are indeed benign growths (A) as they consist of trophoblastic tissue and do not contain fetal tissue. They are not associated with symptoms like pain or bleeding (B), unlike partial moles or invasive choriocarcinomas that can cause symptoms. However, complete moles do have a unique clinical aspect:

**Why Option C is Incorrect:** Complete moles are not associated with an increased risk of developing invasive cancer (C). Unlike partial moles, which can progress to invasive choriocarcinomas, complete moles are benign and resolve spontaneously without requiring treatment in most cases.

**Why Option D is Right:** Complete moles are caused by an abnormal chromosomal pattern (D). The abnormal chromosomal set is a disrupted X and Y chromosome combination, resulting in the absence of fetal tissue and the formation of a gestational sac without an embryo.

**Why Option E is Incorrect:** Option E is not mentioned in the question, as there are only four options given.

**Clinical Pearls:**

1. **Chromosome abnormality**: Incomplete understanding of the chromosomal abnormality in moles can lead to confusion between moles and invasive cancers. A thorough understanding of chromosomal abnormalities is crucial for accurate diagnosis and appropriate management.
2. **Spontaneous resolution**: Complete moles typically resolve without treatment due to the absence of invasive components. However, close monitoring is advised to rule out the development of invasive choriocarcinoma (Option C) in rare cases.
3. **Pregnancy testing and confirmation**: Moles should be considered when a pregnant woman presents with early-onset gestational trophoblastic disease or elevated serum beta-human chorionic gonadotropin (hCG) levels. Confirmation of a mole requires histopathological examination of the placenta.
4. **Patient education and reassurance**: Patients with a diagnosed mole should be educated about the benign nature of the condition and informed about the spontaneous resolution process.