This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
All are signs /features of ectopic pregnancy on USG except 
Select and explain. 
A. Pseudo sac, B. Hyprechoic ring, C. Adenexal mass, D. Echogenic mass with multicystic spaces within endometrial cavity
D: Echogenic mass with multicystic spaces within endometrial cavity
Answer: D: Echogenic mass with multicystic spaces within endometrial cavity 
Explanation: D i.e. Echogenic mass with multicystic spaces within endometrial cavity