There are many small lymphocytes underneath the epithelia, without formation of germinal centers. 上皮下有很多小淋巴细胞，未见生发中心形成。
Beneath the capsule is the paracortical zone with lymphoid follicles having a pale germinal center in which the immune responses are often generated. 被膜下方是有淋巴滤泡的副皮质区，淋巴滤泡有一苍白色的生发中心。
