We present a case of a gravida 1 para 1 woman, who presented with an 11-month history of amenorrhea after cesarean delivery. The patient was taking birth control pills at the time of presentation. She was observed with a slight elevation of serum β-hCG level, an enlarged heterogeneous uterus and hematometra. A biopsy was performed, and the patient was diagnosed with placental site trophoblastic tumor; the patient then underwent surgery. Placental site trophoblastic tumor is the rarest form of gestational trophoblastic disease, derived from intermediate trophoblast cells. It does not have a pathognomonic appearance; therefore, correlation with medical history, as well as results of laboratory tests and pathological analysis is mandatory. It is a relatively chemoresistant tumor, posing considerable therapeutic challenges; patients with localized disease are managed with surgery and those with metastatic disease require additional chemotherapy. Herein, we review the main features of this entity and top differential diagnosis, as the rarity of this tumor is associated with imaging and pathological pitfalls, reinforcing the need for further experience in this field.
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http://dx.doi.org/10.3941/jrcr.v9i4.2146 | DOI Listing |
PLoS Biol
January 2025
Cardiovascular Institute and Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
Definitive hematopoietic stem and progenitor cells (HSPCs) arise from a small number of hemogenic endothelial cells (HECs) within the developing embryo. Understanding the origin and ontogeny of HSPCs is of considerable interest and potential therapeutic value. It has been proposed that the murine placenta contains HECs that differentiate into HSPCs.
View Article and Find Full Text PDFPlacenta
January 2025
Department of Reproductive Medicine Centre, The first Affiliated Hospital, Fujian Medical University, Fuzhou, P.R. China. Electronic address:
Introduction: The distribution of myeloperoxidase (MPO) and dendritic cells (DCs) in sponge trophoblast cells may contribute to the syncytialisation of trophoblast cells and the establishment of uterine placental circulation. Our previous series of studies have shown that MPO plays an important role in angiogenesis and repair, and placental vascular dysfunction can lead to serious pregnancy complications and even miscarriage.
Methods: Mouse model of MPO knockout was constructed, and the crosstalk between MPO and dendritic cells (DC) cells was investigated to determine whether MPO is involved in the pregnancy process.
J Clin Ultrasound
January 2025
Department of Ultrasonic Medicine, West China Second University Hospital of Sichuan University, Chengdu, China.
We report the case of a 28-year-old female patient (gravida 2, para 1) who underwent a cesarean section after 33 weeks of pregnancy due to severe preeclampsia. The placenta was deeply embedded in the myometrium. Localized myometrial ischemia occurred following repair and suturing of the myometrium at the placental attachment site.
View Article and Find Full Text PDFArch Gynecol Obstet
January 2025
Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Colorado School of Medicine, 12631 East 17th Ave, Aurora, USA.
Purpose: Our primary objective was to characterize clinical and procedural factors affecting sample size in chorionic villus sampling (CVS).
Methods: This retrospective, single-site cohort study included singleton pregnancies undergoing transabdominal (TA) and transcervical (TC) CVS between 2020 and 2023. Prenatal and maternal data were obtained from the electronic medical record.
BMC Pregnancy Childbirth
January 2025
Genetic Program, North York General Hospital, Toronto, ON, Canada.
Background: Preeclampsia significantly impacts maternal and perinatal health. Early screening using advanced models and primary prevention with low-dose acetylsalicylic acid for high-risk populations is crucial to reduce the disease's incidence. This study assesses the feasibility of implementing preterm preeclampsia screening and prevention by leveraging information from our current aneuploidy screening program in a real-world setting with geographic separation clinical site and laboratory analysis site.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!