text: Aschoff小体为一位于血管周围的局灶性胶原纤维素样坏死，外周有淋巴细胞、浆细胞和巨大的多核细胞（风湿细胞）的浸润结缔组织，好发部位为心肌、心瓣膜、心外膜、关节处皮下组织和腱鞘，是诊断风湿热的病理依据，表示风湿活动。
entities.entity: 血管
entities.label: bod
entities.entity: 局灶性胶原纤维素
entities.label: bod
entities.entity: 淋巴细胞
entities.label: bod
entities.entity: 浆细胞
entities.label: bod
entities.entity: 多核细胞
entities.label: bod
entities.entity: 风湿细胞
entities.label: bod
entities.entity: 外周有淋巴细胞、浆细胞和巨大的多核细胞（风湿细胞）的浸润
entities.label: sym
entities.entity: 结缔组织
entities.label: bod
entities.entity: 心瓣膜
entities.label: bod
entities.entity: 心外膜
entities.label: bod
entities.entity: 关节
entities.label: bod
entities.entity: 皮下组织
entities.label: bod
entities.entity: 腱鞘
entities.label: bod
entities.entity: 风湿热
entities.label: dis