伤寒肉芽肿
伤寒病变的本质是以巨噬细胞增生为主的急性增生性炎症。增生的巨噬细胞常吞噬伤寒杆菌、淋巴细胞、红细胞及坏死细胞碎片。这种在病理诊断上有一定价值的细胞称为伤寒细胞。伤寒细胞聚集成小结节状,称为伤寒肉芽肿或伤寒小结。
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