Blastomyces dermatitidis is a thermally dimorphic fungus that grows as a mycelial form in the environment and as a thick-walled budding yeast in tissues (at 37°C). It causes blastomycosis, a chronic granulomatous and suppurative disease […]
Identification of fungi depends largely on their macroscopic features (colony characteristics, growth rate, color, texture, diffusible pigment, exudates, aerial and submerged hyphae) and microscopic features (arrangement of spores and sporing bodies). Arrangements of conidiophores and […]
Pneumocystis jirovecii (previously known as Pneumocystis carinii) is an opportunistic atypical fungal pathogen which does not respond to conventional anti-fungal agents*. P.jirovecii is an organism of low virulence which spreads through the air and causes […]
Detection of specific antigens present in the sample (blood, urine, CSF or stool) using immunologic methods such as precipitin tests, particle agglutination tests, immunofluorescence, immunochromatographic or enzyme immunoassays are the mainstay for the rapid diagnosis […]
This post was most recently updated on August 26th, 2019Aspergillus 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 […]
This post was most recently updated on August 26th, 2019Early 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 […]
This post was most recently updated on August 26th, 2019Staib medium also known as bird seed agar is a selective and differential medium for isolation of Cryptococcus neoformans from clinical specimens and differentiation of it […]
This post was most recently updated on December 14th, 2019Histoplasma capsulatum is an intracellular, thermally dimorphic fungi (grows as a yeast in body temperature/37°C in humans, mammals or in culture media and as mold in 25°C in environment/culture […]
This post was most recently updated on October 31st, 2018Cryptococcus neoformans is a yeast with prominent polysaccharide capsule. It is an opportunistic fungal pathogen notoriously known as the most common cause of fungal meningitis (infection and inflammation of […]
This post was most recently updated on August 26th, 2019Potassium hydroxide (KOH) preparation is used for the rapid detection of fungal elements in clinical specimen, as it clears the specimen making fungal elements more visible during […]
This post was most recently updated on November 28th, 2019Candida albicans is an endogenous organism, found in 40 to 80% of normal human beings as commensal in gastrointestinal tract, oropharynx . It is a commonest […]
This post was most recently updated on March 26th, 2019Germ tube test is the confirmatory test for Candida albicans. Germ tube formation was first reported by Reynolds and Braude and hence the germ tube test […]
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