**Question:** Criteria used for diagnosing Cervical pregnancy is

A. Presence of gestational sac in lower uterine segment
B. Absence of fetus in gestational sac
C. Presence of gestational sac in lower uterine segment and absence of fetus
D. Absence of fetus in gestational sac

**Correct Answer:** .

**Core Concept:** Cervical pregnancy is a rare form of ectopic pregnancy where the fertilized ovum implants in the cervix, instead of the endometrial lining of the uterus. This can lead to life-threatening complications if left untreated. Diagnosis is based on specific criteria.

**Why the Correct Answer is Right:** The correct answer is D - Absence of fetus in gestational sac. This is because in a cervical pregnancy, despite the presence of a gestational sac in the lower uterine segment, there is typically no fetal cardiac activity or visible fetus within the sac. This distinguishes it from other forms of ectopic pregnancy, where a fetus is typically present in the gestational sac.

**Why Each Wrong Option is Incorrect:**

A) Presence of gestational sac in lower uterine segment and absence of fetus in gestational sac: This option is incorrect because a cervical pregnancy still lacks a visible fetus within the gestational sac.

B) Absence of fetus in gestational sac: This option is incorrect as it does not specifically mention the absence of a fetal cardiac activity.

C) Presence of gestational sac in lower uterine segment and absence of fetus in gestational sac: This option is incorrect for the same reason as option A.

**Clinical Pearl:** Early diagnosis and treatment of cervical pregnancy are crucial to prevent life-threatening complications such as severe hemorrhage and sepsis. Ultrasound is the primary diagnostic tool, and the absence of fetal cardiac activity in a gestational sac is critical in distinguishing a cervical pregnancy from other forms of ectopic pregnancy.