A Case of Placental Implantation with Exaggerated Placental Site

Abstract

Objective: This study aims to investigate the clinical symptoms, diagnosis, differential diagnosis, and prognosis of exaggerated placental site (EPS), in order to reduce misdiagnosis and missed diagnosis of EPS, avoid the occurrence of serious complications such as massive hemorrhage, and provide some references for clinical doctors. Methods: Retrospective analysis of the medical history and treatment of a patient with placental implantation with exaggerated placental site. A 23-year-old female presented with persistent vaginal bleeding after medical abortion. She was diagnosed with retained products of conception and underwent hysteroscopic surgery. The preliminary postoperative pathological results indicate the possibility of EPS and placental site trophoblastic tumor (PSTT). Further immunohistochemical testing was performed, and the results suggested EPS. Results: The patient recovered well after surgery and did not require further treatment. Her serum human chorionic gonadotropin levels and transvaginal ultrasound findings were normal. Conclusion: EPS is a benign disease, and symptoms will disappear after lesion clearance, requiring no special treatment or follow-up, with a good prognosis. Due to the low incidence rate, atypical clinical symptoms, and insufficient recognition by clinical doctors, EPS are prone to misdiagnosis and missed diagnosis, leading to serious consequences such as massive hemorrhage and hysterectomy. EPS should be considered as a possible diagnosis in any woman who has irregular bleeding following medical abortion.