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Rhabdoid Tumours


Authors: P. Vasovčák;  A. Puchmajerová;  A. Křepelová
Authors‘ workplace: Ústav biologie a lékařské genetiky, Fakultní nemocnice v Motole, Praha
Published in: Klin Onkol 2012; 25(Supplementum): 27-29

Overview

Rhabdoid tumors (RT) are rare highly malignant tumors. They are part of the embryonic types of tumors and therefore occur in early childhood (between ages of 0–2 years). The most common locations are brain and kidney, but RTs arising usually from soft tissues have been reported widely at most anatomical sites in the body. These tumors are composed of rhabdoid cells alone or as a mixture with primitive neuroectodermal cells, mesenchymal cells and/or epithelial cells, commonly denoted as atypical teratoid/rhabdoid tumours (AT/RT). Based on extremely rare incidence and usually non-specific histological picture, molecular genetic studies are extremely helpful in confirming diagnosis of RT. Biallelic inactivation mutation of the SMARCB1 gene plays a crucial role in the pathogenesis of most RT. One third of mutations are germline mutations leading to the designation of the so-called rhabdoid predisposition syndrome. Molecular genetic analysis of the SMARCB1 gene might be beneficial in the establishment of correct diagnosis, genetic counselling and for epidemiologic studies.

Key words:
rhabdoid tumor – SMARCB1 – teratoid tumor

This study was supported by the project of the research organisation 00064203.

The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study.

The Editorial board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.

Submitted:
26. 4. 2012

Accepted:
25. 6. 2012


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Labels
Paediatric clinical oncology Surgery Clinical oncology

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