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Detection of Monoclonality in Paediatric Lymphomas by Polymerase Chain Reaction


Authors: J. Soukup;  R. Kodet;  R. Dahbiová;  J. Trka *;  J. Zuna *
Authors‘ workplace: Ústav patologické anatomie 2. LF UK a FN Motol, Praha, vedoucí prof. MUDr. R. Kodet, CSc. *2. dětská klinika 2. LF UK a FN Motol, Praha, přednosta doc. MUDr. J. Vavřinec, CSc.
Published in: Čes.-slov. Patol., , 1998, No. 4, p. 131-135
Category:

Overview

We studied monoclonality of tumour cells by polymerase chain reaction (PCR) in paediatric lymphomas. In B-lymphomas we detected monoclonal rearrangement of the immunoglobulin of the T-cell receptor delta and gamma chain (TCR, TCR-d, TCR-g) by an analogous way. We examined a group of 37 paediatric patients with lymphomas (26 with B-lymphomas and 11 with T-lymphomas). Monoclonal gene rearrangement was found in 34 cases, i.e. the method used in this study proved to be successful in 92% of cases. We confirmed our results by correlation with histologic and immunohistologic diagnoses. The method may be used as a complementary diagnostic tool in differential diagnosis of lympho- ma versus non-neoplastic proliferation of lymphatic tissue, in distinction between B- and T-lym- phomas, and to separate lymphomas and other malignancies. Beside the pure diagnostic usage we perceive the main importance of the method in monitoring minimal residual disease (MRD), because amplified products of PCR may be sequenced and used for preparing tumour specific primers and probes.

Key words:
malignant lymphoma - monoclonality - polymerase chain reaction - IgH - TCR.

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Anatomical pathology Forensic medical examiner Toxicology
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