True about ectopic pregnancy:: (A) Transvaginal USG-first imaging test of choice, (B) Not Associated with decidual reaction, (C) Doppler is of no significance, (D) In ectopic interstitial ring sign is seen
Answer is A. If TVS reveals an intrauterine gestational sac,the diagnosis of ectopic can usually be ruled out .sometimes a psuedosac may be seen in an ectopic due to bleeding produced by separation of a decidual cast.(refer pgno:159 sheila 2 nd edition)