The authors present a case of a 14-year-old premenarchal girl with a large solid tumor of the left ovary. The rim of normal ovarian tissue was visible around the tumor on ultrasonography scan. Although the levels of two tumor markers, LDH and CA125, were elevated, the authors performed an organ-sparing tumorectomy. The final pathology report revealed foci of immature neural tissue, with a final diagnosis immature teratoma Stage Ia.
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Pediatr Blood Cancer
January 2025
Department of Pediatric Surgery, Urology and Transplantation, Hôpital Universitaire Necker-Enfants Malades, APHP, Université de Paris Cité, Paris, France.
Background: Ovarian mature teratoma represents the most common benign neoplasm among pediatric germ cell tumors. This study reports the prevalence and characteristics of familial forms identified in a single center over 22 years in order to better understand possible familial predispositions to ovarian teratoma.
Methods: The records of all patients who were surgically treated for ovarian teratoma between 2000 and 2022 were retrospectively reviewed.
Ann Cardiol Angeiol (Paris)
January 2025
Cardiology Department, Ibn Rochd Hospital University, Casablanca, Morocco.
Introduction: Mature teratomas, a diverse group of germ cell tumors, rarely present with complications such as rupture.
Case Presentation: We present a case of a 27-year-old male who was admitted to our hospital with acute dyspnea. A tamponade was diagnosed and the patient underwent a pericardial puncture.
Taiwan J Obstet Gynecol
January 2025
Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 704302, Taiwan. Electronic address:
Objective: Mature extragonadal teratomas, particularly at the pelvic extraperitoneal site, are rare. Herein, we report a case of paravaginal teratoma and fistula formation five years post-operation.
Case Report: A 23-year-old woman (G4P3A1) presented with a left paravaginal cystic tumor.
Stem Cell Reports
December 2024
Center for Cell Lineage and Development, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China, Guangzhou Medical University, Guangzhou 511436, China; Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, P.R. China. Electronic address:
Guinea pigs are valuable models for human disease research, yet the lack of established pluripotent stem cell lines has limited their utility. In this study, we isolate and characterize guinea pig epiblast stem cells (gpEpiSCs) from post-implantation embryos. These cells differentiate into the three germ layers, maintain normal karyotypes, and rely on FGF2 and ACTIVIN A signaling for self-renewal and pluripotency.
View Article and Find Full Text PDFJ Cancer Res Ther
December 2024
Department of Urology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu Province, People's Republic of China.
Background: To evaluate the association of demographic and clinicopathological characteristics with the survival of patients with testicular mixed teratoma and seminoma (TMTS).
Methods: The data of 3296 eligible patients with TMTS who underwent surgery between 2010 and 2015 were obtained from the Surveillance, Epidemiology, and End Results database. Overall survival (OS) and cancer-specific survival (CSS) were determined using the Kaplan-Meier survival curves.
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