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Misclassification of a frequent loss of function variant from PMS2CL pseudogene as a PMS2 variant in Brazilian patients

2024-03-27 genetic and genomic medicine Title + abstract only
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PMS2, a Lynch Syndrome gene, presents challenges in genetic testing due to the existence of multiple pseudogenes. This study aims to describe a series of cases harboring a rare LoF variant in the PMS2CL pseudogene that has been incorrectly assigned to PMS2 with different nomenclatures. We reviewed data from 647 Brazilian patients who underwent multigene genetic testing at a single center to identify those harboring the PMS2 V1:c.2186_2187delTC or V2:c.2182_2184delACTinsG variants, allegedly loca...

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