感染性心内膜炎蓝色菌落蔓延

感染性心内膜炎瓣膜，左下方的蓝色菌落正向瓣膜的淡红色结缔组织蔓延。瓣膜血管较少，因此抗感染需要大剂量抗生素。

Here is a valve with infective endocarditis. The blue bacterial colonies on the lower left are extending into the pink connective tissue of the valve. Valves are relatively avascular, so high dose antibiotic therapy is needed to eradicate the infection.