Pneumocystis jirovecii: Properties, Pathogenesis, Lab Diagnosis
Pneumocystis jirovecii (previously known as Pneumocystis carinii) is an opportunistic atypical fungal pathogen that does not respond to conventional anti-fungal agents*. P. jirovecii is an organism...
Aspergillus fumigatus: Morphology, Pathogenesis, Lab Diagnosis
Aspergillus is a ubiquitous mold found throughout the world in air, soil, water, and decaying vegetation. It is an opportunistic pathogen causing infections mainly in people with impaired immunity...
Early diagnosis of fungal infection is critical for effective treatment. For many decades, culture, direct microscopy, and histopathology have been the foundation for the diagnosis of fungal...
Asexual spores of H.capsulatum A: Tuberculate macroconidia B: Microconidia Histoplasma capsulatum is an intracellular, thermally dimorphic fungi (grows as a yeast in body temperature/37°C in...
Cryptococcus neoformans is a yeast with a prominent polysaccharide capsule. It is an opportunistic fungal pathogen notoriously known as the most common cause of fungal meningitis (infection and...
Potassium hydroxide (KOH) preparation is one of the most common direct fungal stains; others are PAS (periodic-acid Schiff), GMS (Grocott's methenamine silver stain), and calcofluor white. It is...
