A small,rubbery granuloma that has a necrotic center and is enclosed by an inflamed,fibrous capsule. It is characteristic of an advanced stage of syphilis.

• 梅毒瘤一种小的橡胶肉牙瘤，中心坏死，周围包裹着一层发炎的纤维状外囊。为梅毒的后期症状。