Related Experiment Video
Updated: May 4, 2026

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes
Published on: June 27, 2025
Retained placenta accreta after a first-trimester abortion manifesting as an uterine mass
Soyi Lim1, Seung-Yeon Ha, Kwang-Beom Lee
1Department of Obstetrics and Gynecology, Gil Medical School, Gachon University of Medicine and Science, Incheon, Korea.
Placenta accreta during the first trimester of pregnancy is rare. Only a few cases of placenta accreta manifesting as a uterine mass have been published. Most patients with placenta accreta present with vaginal bleeding during or after pregnancy. This report describes a patient with placenta accreta that caused vaginal bleeding three years after a first trimester abortion. The patient had regular menstruation for three years after the abortion. Initially endometrial cancer or a uterine myoma with degeneration was suspected. This is the first report of a placenta accreta detected as a uterine mass long after a first trimester abortion with delayed vaginal bleeding.
Placenta accreta during the first trimester of pregnancy is rare. Only a few cases of placenta accreta manifesting as a uterine mass have been published. Most patients with placenta accreta present with vaginal bleeding during or after pregnancy. This report describes a patient with placenta accreta that caused vaginal bleeding three years after a first trimester abortion. The patient had regular menstruation for three years after the abortion. Initially endometrial cancer or a uterine myoma with degeneration was suspected. This is the first report of a placenta accreta detected as a uterine mass long after a first trimester abortion with delayed vaginal bleeding.
Related Concept Videos
Histology of the Uterus
The endometrium is the...
Appendicitis-I: Introduction
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Uterus and Cervix
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs...
Embryonic Connective Tissues
The mesenchyme is the first connective tissue that emerges in the developing embryo. It consists of loosely arranged multipotent mesenchymal cells and reticular fibers in the extracellular matrix. This loose arrangement allows easy migration of cells, which is essential for germ layer positioning, patterning, and organ morphogenesis during embryonic development.
Nursing Assessment of the Genitourinary System II: Inspection and Palpation
Ovarian Cycle

