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Published on: February 17, 2019
Management, Treatment, and Molecular Background of the Growing Teratoma Syndrome
Andreas Hiester1, Daniel Nettersheim2, Alessandro Nini1
1Department of Urology, University of Duesseldorf, Medical Faculty, Heinrich-Heine-University, Moorenstr. 5, Duesseldorf 40225, Germany.
Abstract:
Growing teratoma syndrome (GTS) is a rare clinical phenomenon in patients with nonseminomatous germ cell cancer defined by growing metastatic mass during ongoing or directly after completed chemotherapy with timely decreasing tumor markers and postpubertal teratoma exclusively after resection. GTS was first described in 1982, and few reports have been published. The limited number of studies and the resulting lack of exact knowledge about development, differentiation, and treatment of GTS leaves several clinical problems regarding treatment and follow-up unsolved. This review provides an overview of clinical diagnosis and disease management and an approach to explain the molecular development of GTS.
Insights
Growing teratoma syndrome (GTS) is a rare complication of nonseminomatous germ cell cancer. This review clarifies GTS diagnosis, management, and molecular development for improved patient outcomes.
Area of Science:
- Oncology
- Genitourinary Cancer
- Germ Cell Tumors
Background:
- Growing teratoma syndrome (GTS) is a rare clinical phenomenon observed in patients with nonseminomatous germ cell cancer.
- It is characterized by a growing metastatic mass despite ongoing or completed chemotherapy, with decreasing tumor markers.
- GTS is exclusively a postpubertal teratoma identified only after surgical resection.
Purpose of the Study:
- To provide a comprehensive overview of the clinical diagnosis and disease management of Growing Teratoma Syndrome.
- To explore the molecular mechanisms underlying the development of GTS.
- To address unsolved clinical problems regarding the treatment and follow-up of GTS patients.
Main Methods:
- Literature review of published reports on Growing Teratoma Syndrome since its first description in 1982.
- Analysis of clinical characteristics, diagnostic criteria, and treatment strategies for GTS.
- Exploration of potential molecular pathways involved in GTS development and differentiation.
Main Results:
- Growing Teratoma Syndrome presents a diagnostic and therapeutic challenge due to its rarity and complex presentation.
- Timely decreasing tumor markers alongside a growing mass indicate GTS, with definitive diagnosis post-resection.
- Limited studies highlight the need for further research into GTS's molecular basis and optimal management protocols.
Conclusions:
- Growing Teratoma Syndrome requires a multidisciplinary approach for accurate diagnosis and effective management.
- Understanding the molecular development of GTS is crucial for refining treatment strategies and improving patient follow-up.
- Further research is essential to resolve the existing clinical uncertainties surrounding this rare complication of germ cell cancer.
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