DNTT and thymoma: This micronodular thymoma with lymphoid stroma was widely separated from the LESA-like TH and showed features distinctly different from those of LESA-like TH: sharply delineated nodules of plump spindle epithelial cells, lack of Hassall corpuscles and a lymphoid stroma harboring immature, TdT(+) T-cells around the epithelial nodules in addition to mature B-cells and T-cells (Figure S1).