<prompt> Young lady presents with acute abdominal pain and history of 112 months amenorrhoea, on USG examination there is collection of fluid in the pouch of Douglas and empty gestational sac. Diagnosis is:Ectopic pregnancyPelvic hematoceleThreatened abortionTwisted ovarian cyst  <response>: Ans. is a, i.e. Ectopic pregnancyRef. Dutta Obs. 7e, p 182, 183Young lady presenting with history of:AmenorrheaAbdominal painOn USG:Collection of fluid in pouch of DouglasEmpty gestational sacIndicate:Ectopic pregnancy 