Granulomas caused by Mycobacterium tuberculosis and by pathogenic fungi such as Histoplasma capsulatum or Cryptococcus neoformans are often caseating. Here, the area of caseation is seen at the upper right.

• 图示干酪样肉芽肿。上皮细胞围绕在中央坏死区域周围，坏死物呈不规则、无定形、粉红色，干酪样坏死区状似奶酪。