患者男性，７１岁，右颈部无痛性包块渐增大２年。体检：右颈部触及淋巴结２个，不活动，质地较硬，手术切除送病检。术中肿块质地脆，易碎，送检时淋巴结不完整，呈碎块状。病理检查淋巴结结构已破坏，可见两种细胞：①大细胞，胞浆丰富，嗜酸性，核大，染色质粗，靠近核... The patient was a 71-year-old man with a painless mass in his right neck that grew for 2 years. Physical examination: The right neck touched 2 lymph nodes, inactive, hard texture, and surgical resection sent for examination. Intraoperative tumor mass was brittle and brittle, and the lymph nodes were incomplete at the time of examination. Pathological examination of the structure of the lymph node has been destroyed, showing two kinds of cells: 1 large cells, abundant cytoplasm, eosinophilic, nuclear large, coarse chromatin, close to the nuclear ...