The splenic specimen had a micronodular pattern, germinal center cytologic composition, and frequent presence of marginal zone-like cells at the periphery of the nodules.

• 脾脏组织切片镜下肿瘤呈小结节的生长方式，结节由生发中心细胞组成，外周淋巴结的切片中常常见到边缘区细胞样瘤细胞。