A female presents with 8 weeks amenorrhea with pain left lower abdomen. On USG, there was thick endometrium with mass in lateral adnexa. Most probable diagnosis:
**Core Concept**
The patient's presentation with amenorrhea, lower abdominal pain, and a thick endometrium with a mass in the lateral adnexa on ultrasound is suggestive of an ectopic pregnancy, specifically a ruptured ectopic pregnancy. This condition occurs when a fertilized ovum implants outside the uterus, most commonly in the fallopian tube, and can lead to life-threatening internal bleeding.
**Why the Correct Answer is Right**
The correct diagnosis is a ruptured ectopic pregnancy. This condition is characterized by the implantation of a fertilized ovum in the fallopian tube, which can lead to rupture and internal bleeding. The thick endometrium on ultrasound is indicative of early pregnancy, while the mass in the lateral adnexa is suggestive of the ectopic pregnancy. The patient's presentation with abdominal pain and amenorrhea further supports this diagnosis. The fallopian tube's muscular wall can rupture, leading to severe internal bleeding.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** This option is not provided.
* **Option C:** This option is not provided.
* **Option D:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
A mnemonic to remember the risk factors for ectopic pregnancy is "STEVE": Smoking, Tubal damage, Endometriosis, Violence, Age > 35 years, and previous ectopic pregnancy.
**Correct Answer:** D.