Geotrichum klebahnii: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, and Prevention

Lacking blastoconidia (budding yeast cells), distinguishing Geotrichum klebahnii from Trichosporon

Introduction Geotrichum klebahnii is a rare, opportunistic, yeast-like fungus that is found globally in environments like soil, dairy products, and organic waste, but can act as an emerging pathogen in humans. Along with Geotrichum candidum, it is one of the only species within its genus …

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Saprochaete capitata:Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Saprochaete capitata in Dalmau plate technique microscopic footage

Introduction Saprochaete capitata is an emerging opportunistic fungal pathogen that causes severe, frequently fatal systemic infections in profoundly immunocompromised individuals. It is notorious for its intrinsic resistance to echinocandins and high resistance to fluconazole, which often results in breakthrough fungemia during standard empirical antifungal therapy. …

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Mycobacteria Growth Indicator Tube (MGIT) Culture Outcomes: Introduction, Identification, Causes of Contamination, and Keynotes

Mycobacteria Growth Indicator Tube (MGIT)-Positive

Introduction The Mycobacteria Growth Indicator Tube (MGIT) system is a high-throughput, automated method optimized for the rapid isolation and detection of Mycobacterium tuberculosis complex and non-tuberculous mycobacteria (NTM).  [Initial Stage]     Oxygen is high —–> Quenches sensor —–> NO FLUORESCENCE [Bacterial Growth]  Oxygen consumed —-> Frees …

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Tuberculosis (TB) Laboratory & Quality Assurance Examination

Negative MGIT tube (left) with clear medium versus a positive MGIT tube (right) showing characteristic granular mycobacterial clumping at the bottom

Encircle the correct Answer of the Following question. 1) What is the full form of LQAS? 2) What are the components of the Quality Assurance system? 3) LQAS is based on… 4) GeneXpert testing detects… 5) The slide positivity rate is determined in LQAS is …

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Mycobacterium tuberculosis complex (MTBC): Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Mycobacterium tuberculosis complex grow on MGIT having modified Middlebrook 7H9 broth with PANTA supplement after 13 days of incubation

Introduction The Mycobacterium tuberculosis complex (MTBC) is a group of genetically related bacterial species that cause tuberculosis (TB) in humans and various animals. While Mycobacterium tuberculosis (sensu stricto) is the primary cause of human tuberculosis, the complex includes several other species with distinct host preferences and geographic distributions.  Morphology …

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Fungal Elements in KOH Mount of Urine Microscopy: Introduction, Fungal Elements Observed in Urine KOH Mount, Applications, and Keynotes

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

Introduction Potassium Hydroxide (KOH) mount is a simple, rapid, and cost-effective microscopic technique used to detect fungal elements in various clinical specimens, including urine samples. When fungal infection of the urinary tract (funguria) is suspected—especially in immunocompromised, diabetic, or catheterized patients—KOH mount helps visualize yeast …

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Fungal Identification by Artificial Intelligence (AI): Introduction, Working Mechanisms, Clinical Significance, and Keynotes

Yeast and mold growth on SDA agar

Introduction Fungal infections represent a growing concern in both immunocompromised and immunocompetent individuals. Conventional identification methods, including culture, microscopy, and biochemical testing, often require several days and may lack sensitivity or specificity for certain opportunistic fungi. Molecular techniques such as PCR and sequencing have improved …

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Pleural Fluid Microscopy: Introduction, Principle, Test Requirements, Procedure, Finding, Clinical Significance, and Keynotes

Collected Pleural Fluid-

Introduction Pleural fluid is the liquid collected from the pleural space between the lung and chest wall. Microscopic examination of pleural fluid plays a key role in identifying the underlying cause of pleural effusion. It helps distinguish between transudates and exudates, detect infectious organisms, malignant …

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