Aspergillus terreus: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Colony morphology of Aspergillus terreus on Corn Meal Agar (CMA) showing a characteristic cinnamon-brown to sandy-beige pigmentation with a velvety, granular texture and a light-colored peripheral growth zone

Introduction & Taxonomy Aspergillus terreus is a filamentous fungus increasingly recognized as a significant emerging opportunistic pathogen. It is uniquely distinguished from other common species by its intrinsic resistance to amphotericin B, its characteristic cinnamon-brown colony color, and the production of specialized spores called aleurioconidia. …

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Fungal Elements in KOH Mount of Bile Microscopy-Introduction, Fungal Elements Observed in Bile KOH Mount, Applications, and Keynotes

Bile sample before centrifugation for KOH mount and fungal culture

Introduction KOH Mount of Bile is a direct microscopic examination technique used to detect fungal elements in bile fluid collected during ERCP, biliary drainage, cholecystectomy, or liver procedures.Because bile contains mucus, epithelial debris, fats, and pigments, a 10–20% Potassium Hydroxide (KOH) solution is used to …

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Aspergillus-Antibody Testing-Introduction, Types of Tests, Clinical Significance, Interpretation of Results, and Keynotes

Aspergillus-Antibody Testing

Introduction Aspergillus antibody testing, specifically IgG and IgE, helps diagnose aspergillosis, particularly chronic pulmonary aspergillosis and allergic bronchopulmonary aspergillosis, by detecting antibodies in the blood against the fungus.  Types of Tests Clinical Significance Interpreting Results Keynotes Further Readings

Top 10 Fungal Pathogens: List with short Descriptions, and Footage

Mucor colony morphology on SDA

Top 10 Fungal Pathogens List A list of the Top 10 Fungal Pathogens is summarized as follows- Short Descriptions of Top 10 Fungal Pathogens Candida albicans Aspergillus fumigatus Cryptococcus neoformans Histoplasma capsulatum Blastomyces dermatitidis Coccidioides immitis (and C. posadasii) Pneumocystis jirovecii Mucor species (and Rhizopus …

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Aspergillus flavus: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Aspergillus flavus colony morphology on Czapek Dox Agar plate

Introduction Aspergillus flavus is a filamentous fungus belonging to the Aspergillus genus, which comprises a wide variety of mold species. This particular species is commonly found in the environment and is known for its economic and medical significance. It is commonly associated with food and …

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Aspergillus: Introduction, Classification, Colony Morphology, Pathogenesis, Clinical Features, Lab Diagnosis, Treatment, and Prevention

Aspergillus niger Colony Morphology on Sabouraud Dextrose Agar (SDA) after 3 days of incubation

Introduction of Aspergillus The genus Aspergillus has more than 180 species, among them, 38  are responsible to cause disease (able to grow at 37◦C. They are common in the environment. Aspergillus species are emerging pathogens which are ubiquitous molds that infect immunocompetent ( rarely) and immunocompromised …

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