Peer-Reviewed Publication
Thyroid2026;10507256261493762.October 7, 2026Journal Article

RET Variant Reclassification across Demographic Sub-Groups in a Large-Scale Clinical Population.

Kirkpatrick B Fergus1, Marcy E Richardson2, Elad Ziv3, Julie Ann Sosa1, Elizabeth G Grubbs4
1Department of Surgery, University of California-San Francisco (UCSF), San Francisco, California, USA.
2Ambry Genetics, Aliso Viejo, California, USA.
3Department of Medicine, Division of General Internal Medicine, University of California, San Francisco, San Francisco, California, USA.
4Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.

Abstract

BACKGROUND: The expanded use of germline testing panels that include the RET proto-oncogene has identified many variants of uncertain significance (VUSs). It remains poorly understood how many RET VUSs are returned in clinical practice, how many are ultimately reclassified, and which patient populations are affected most. METHODS: We conducted a nationwide retrospective cohort study of individual…

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