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Intraplacental choriocarcinoma (IC) is a gestational trophoblastic neoplasia located within the placenta. Due to its silent presentation, more than half of the cases are diagnosed incidentally. An association with fetomaternal hemorrhage (FMH), stillbirth, and intrauterine growth restriction has been found.

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Long-term outcome and fertility results of intraplacental choriocarcinoma: a retrospective study of 14 patients and literature review.

Orphanet J Rare Dis

May 2024

Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, No. 1 Shuaifu Road, Dongcheng District, Beijing, 100730, China.

Article Synopsis
  • Intraplacental choriocarcinoma (IC) is a rare type of gestational choriocarcinoma, and this study examined 14 cases to evaluate long-term fertility and recurrence outcomes.
  • Of the 14 patients treated at Peking Union Medical College Hospital, half had metastatic IC, and results showed a low recurrence rate, with one patient achieving a successful full-term pregnancy post-treatment.
  • The findings suggest that IC responds well to chemotherapy, allowing for positive pregnancy outcomes, but highlight the importance of addressing the psychological concerns of patients regarding recurrence.
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Intraplacental choriocarcinoma is a rare tumour, with approximately 62 reported cases. It may manifest as a spectrum of disease ranging from an incidental lesion diagnosed on routine placental examination to disseminated maternal and/or neonatal disease. In this case series, we presented two rare cases of intraplacental choriocarcinoma with extremely varied clinical presentations.

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Genetic and histological analysis intraplacental choriocarcinoma: a case report.

Med Mol Morphol

June 2024

Department of Obstetrics and Gynecology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Iruma-gun, Saitama, Japan.

We report on single case of intraplacental choriocarcinoma (IC) coexisting with feto-maternal hemorrhage from our hospital, a rare malignant tumor that occurs in the chorionic villous trophoblast. To investigate genetic and epigenetic changes to the carcinogenesis of IC, we employed cancer gene panel analysis and whole methylation analysis from a recent case of IC. By Short Tandem Repeats analysis, we confirmed that the tumor of present IC was derived from concurrent normal chorionic villous trophoblast cells.

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Introduction: Intraplacental choriocarcinoma is a gestational trophoblastic neoplasia located within the placenta. Due to the usual silent presentation, more than half of the cases are diagnosed incidentally. It has been demonstrated that this pathology is linked to feto-maternal hemorrhage (FMH), stillbirth, and intrauterine growth restriction.

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