RT Book, Section A1 Fleischer, Arthur C. A1 Rebele, Erin A2 Fleischer, Arthur C. A2 Abramowicz, Jacques S. A2 Gonçalves, Luis F. A2 Manning, Frank A. A2 Monteagudo, Ana A2 Timor, Ilan E. A2 Toy, Eugene C. SR Print(0) ID 1151030983 T1 Transvaginal Sonography of Early (First Trimester) Intrauterine Pregnancy T2 Fleischer's Sonography in Obstetrics and Gynecology: Textbook and Teaching Cases, 8e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259641367 LK obgyn.mhmedical.com/content.aspx?aid=1151030983 RD 2024/04/20 AB Key TermsEmbryo: conceptus during early (8 weeks).Subchorionic hemorrhage: bleeding beneath the chorion.Threatened abortion: characterized clinically by bleeding and cramping.“Implantation” bleeding: spotting associated with implantation (3-5 weeks).Incomplete abortion: bleeding, cramping with retained products of conception (RPOC) (fetus, choriodecidua, and membranes).Spontaneous abortion: bleeding associated with miscarriage (not induced or therapeutic Ab).Induced or therapeutic miscarriage or abortion: intentional use of medication and/or instrumentation to induce miscarriage.Ectopic pregnancy: implantation outside of endometrial lumen.Retained products of conception (RPOC): residual choriodecidua or embryo/fetal tissue within the uterine cavity after threatened, spontaneous, induced miscarriage, or pregnancy.