Background: Exaggerated placental site (EPS) is classified as a non-neoplastic trophoblastic lesion, and histologically it consists of endometrial and myometrial invasion of intermediate trophoblasts and syncytiotrophoblasts and it differs morphologically from placental site trophoblastic tumors and placental nodules. The purpose of this report is to increase physicians' awareness of this lesion.
Case: A 48-year-old woman with post-molar rising betahCG titers and a clinical diagnosis of non-metastatic trophoblastic disease underwent hysterectomy. Final histopathology showed exaggerated placental site--a lesion often unfamiliar to clinicians.
Conclusion: It is suggested that operative hysteroscopy may be useful in the diagnosis and management of EPS.
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Eur J Immunol
January 2025
Department of Obstetrics and Gynecology, Erasmus MC, Rotterdam, The Netherlands.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in the placenta can lead to fetal distress and demise, characterized by severe trophoblast necrosis, chronic histiocytic intervillositis (CHI), and massive perivillous fibrin deposition. We aimed to uncover spatial immune-related protein changes in SARS-CoV-2 placentitis compared with CHI placentas and uncomplicated pregnancies to gain insight into the underlying pathophysiological mechanisms. Placentas were retrospectively collected from cases with SARS-CoV-2 placentitis resulting in fetal distress/demise (n = 9), CHI (n = 9), and uncomplicated term controls (n = 9).
View Article and Find Full Text PDFAnn Diagn Pathol
January 2025
Latifa Hospital, Dubai, United Arab Emirates.
Isthmoceles are defects related to Caesarean section (CS) scars, known to cause secondary infertility and interfere with in-vitro fertilization in women who have had Caesarean deliveries. The etiologies are multifactorial. Isthmoceles, similar to dehiscent CS scars, can be potential sites for ectopic pregnancies and abnormal placentation.
View Article and Find Full Text PDFLupus
January 2025
Mansoura Nephrology and Dialysis Unit, Mansoura University, Mansoura, Egypt.
Background: Endoplasmic reticulum stress with protein misfolding has been introduced as a key pathogenetic mechanism in lupus nephritis (LN). Pregnancy is thought to exaggerate proteostasis, which leads to the accumulation of potentially pathogenic misfolded proteins in the urine, serum, and placenta particularly in women with preeclampsia. The detection of misfolded proteins is made using Congo red stain, which is referred to as congophilia.
View Article and Find Full Text PDFPhysiol Res
November 2024
Department of Obstetrics and Gynecology, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA.
The fetus develops normally in a hypoxic environment but exaggerated hypoxia late in pregnancy is a worrisome sign often observed in hypertensive disorders of pregnancy, placental insufficiency, or fetal growth restriction (FGR). Serial fetal biometry and the cerebroplacental ratio (CPR, calculated as the middle cerebral artery [MCA] / the umbilical artery [UmbA] pulsatility indices [PI]), are commonly used to indicate fetal "brain sparing" resulting from exaggerated fetal hypoxia. But unclear is the extent to which a low CPR indicates pathology or is a physiological response for maintaining cerebral blood flow.
View Article and Find Full Text PDFHematol Oncol Clin North Am
December 2024
Department of Histopathology, North West London Pathology, Imperial College Healthcare NHS Trusts, London, UK; Department of Metabolism, Digestion and Reproduction, Imperial College Healthcare NHS Trusts, London, UK. Electronic address:
Gestational trophoblastic disease (GTD), comprising hydatidiform moles (HM) and gestational trophoblastic tumors (GTT), is extremely rare. HM originate from villous trophoblast and are considered preneoplastic. GTT originate from the intermediate, largely extravillous trophoblast and includes choriocarcinoma, placental site trophoblastic tumor, epitheloid trophoblastic tumor, and mixed trophoblastic tumor.
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