CD8A and carcinoma: The three cases submitted represented clonal CD8 + T-cell expansions in different clinical settings including infectious mononucleosis (IM) (LYWS-330 submitted by L. Quintanilla-Martinez), autoimmune disease (LYWS-276 submitted by M. Pizzi), and carcinoma (LYWS-344 submitted by M. Gomez-Tena).