**Question:** Least common site of ectopic pregnancy?

**Core Concept:** Ectopic pregnancy is a condition where a pregnancy develops outside the uterus, most commonly in the fallopian tube.

**Why the Correct Answer is Right:** The correct answer, C, refers to the least common site for an ectopic pregnancy, which is the ovary. Ectopic pregnancies can occur in various locations, such as the cervix, peritoneum, or appendices epiploica. However, the ovary is the rarest site, accounting for only a small percentage of cases.

**Why Each Wrong Option is Incorrect:**

A. The fallopian tube is the most common site for ectopic pregnancies, making it an incorrect choice.
B. The placenta is formed in a normal pregnancy within the uterus, so option B is incorrect.
D. Although some ectopic pregnancies can occur in the cervix or peritoneum, these locations are less common compared to the ovary, making D an incorrect choice.

**Clinical Pearl / High-Yield Fact:** Ectopic pregnancies have a significant risk of complications, including rupture, hemorrhage, and maternal mortality. Early diagnosis and intervention are crucial for better outcomes.

**Correct Answer:**

. Ovary (C) is the least common site for an ectopic pregnancy.