On the medullary substance surface, there is a layer of simple epithelium. 淋巴小结的髓质外侧表面付有单层上皮。
Cases had extensive low density screenage in two cerebral medullary substance and had no transparent reinforcement screenage. 4例为两侧大脑半球髓质内广泛低密度影,增强扫描无强化。
Since then, number of folials, lymphocytes in cortex and medullary substance increased month by month. 此后,小叶数量,皮质、髓质中淋巴细胞数量也逐月增加。