Pneumocystis carinii

Caption:
Exudate formation that resembles a honeycomb at 100x magnification ().
Exudate in the alveoli contain cysts Pneumocystis carinii.

  • Note:
    The difference between Pneumocystis carinii and Histoplasma capsulatum var capsulatum is that Pneumocystis carinii does not have budding forms and the location is extracellular whilst Histoplasma capsulatum var capsulatum has budding forms  and is intracellular in location.