Flow Cytometric Assessment of <scp>TRBC1</scp> Expression for the Diagnosis of T‐Cell Lymphoma: Clinical Utility and Pitfalls Related to T‐Cell Clones of Uncertain Significance

This study demonstrates the clinical utility of flow cytometric TRBC1 assessment in diagnosing T-cell lymphomas, characterizing TRBC1 expression patterns, and identifying TCUS in a large cohort of specimens without T-cell lymphoma involvement across diverse clinical settings. Given the relatively frequent detection of TCUS, these findings underscore the importance of interpreting TRBC1 flow cytometry results within the appropriate clinical context.