In which type of aboion the gestational age corresponds to the uterine size?
**Core Concept**
The question is testing the understanding of the relationship between gestational age and uterine size in different types of abortions. In medical terminology, this refers to the correlation between the duration of pregnancy and the size of the uterus, which can be an important factor in diagnosing and managing various gynecological conditions.
**Why the Correct Answer is Right**
In an **incomplete abortion**, the gestational age corresponds to the uterine size because the abortion is not complete, and the products of conception are still retained within the uterus. This type of abortion occurs when a portion of the products of conception, such as the placenta or fetus, is expelled from the uterus, but some parts remain inside. As a result, the uterine size may not decrease proportionally with the gestational age, making it a key distinguishing feature of incomplete abortion.
**Why Each Wrong Option is Incorrect**
* **Option A:** In a **miscarriage**, the uterine size is usually smaller than expected for the gestational age because the products of conception have been expelled from the uterus.
* **Option B:** In an **ectopic pregnancy**, the uterine size is often smaller than expected for the gestational age because the pregnancy is not developing within the uterus.
* **Option C:** In a **molar pregnancy**, the uterine size may be larger than expected for the gestational age because the abnormal trophoblastic tissue can cause the uterus to become enlarged.
**Clinical Pearl / High-Yield Fact**
In cases of suspected incomplete abortion, it's essential to perform a thorough ultrasound examination to assess the uterine size and contents, as well as to evaluate for any potential complications, such as infection or hemorrhage.
**Correct Answer:** C.