Jaroslaw P. Maciejewski, MD, PhD, Chair of the Translational Hematology and Oncology Research Department at Cleveland Clinic, joins the Cancer Advances podcast to take a deeper look at inborn errors of immunity and their role in clonal T-cell expansion and large granular lymphocyte (LGL) leukemia. Listen as Dr. Maciejewski explains how subtle immune deficiencies may drive disease, what this means for diagnosis and treatment, and how these insights could reshape how clinicians think about immune-mediated bone marrow failure.