The HV GLNH is commonly mediastinal l esion.The PC GLNH often involves mesenteric and retroperitoneal lymph nodes.Co nclusion: GLNH is rare.

• 其组织形态上可分为透明血管型和浆细胞型两类，前者常表现为纵隔病变，后者好发于肠系膜和腹膜后淋巴结。