this subset of sbl+pnl+thymic lymphocytes in the adult populates the area beneath the thymic capsule , forming a narrow rim only , while in perinatal thymus a corresponding subcapsular cell layer comprises almost one third of the thymic tissue and in early ontogenesis the vast majority of thymic lymphoid cells are pnl+sbl+ .
C1515430
thymic tissue
C0040113
thymic