Histologic classification as recommended by National Malignant Lymphoma Cooperative Group in 1979 was adopted. All were lymphosarcoma, 3 of which are small lymphocytic, 2 medium size round cell ( lymphoblast-like), and 1 mixed round and cleaved-nucleus cell type. 按我国1979年制定的恶性淋巴瘤组织学分类,本组肿瘤皆为淋巴细胞肉瘤,其中小淋巴细胞型3例,中圆细胞(淋巴母样细胞)型2例,圆&裂细胞混合型1例。