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

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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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Leucine Crystals: Introduction, Identification Features, and Clinical Significance

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Leucine crystal in urine microscopy at a magnification of 1600X

Introduction Leucine crystals are rare urinary findings that typically appear in patients with severe liver disease, such as advanced cirrhosis, severe hepatitis, or metabolic disorders like maple syrup urine disease. They form in acidic urine and indicate a disturbance in amino acid metabolism. Identification Features …

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Sulfonamide Crystals: Introduction, Identification Features, and Clinical Significance

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Sulfonamide (sulfadiazine) crystals in urine sediment microscopy

Introduction Sulfonamide crystals are drug-induced urinary crystals that appear in patients receiving sulfonamide (sulfa) therapy, particularly when urine is acidic, concentrated, or dehydrated. They occur due to precipitation of unmetabolized sulfonamide compounds in urine, especially older drugs like sulfadiazine, which are less soluble in acidic …

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Urate Crystals: Introduction, Identification Features, and Clinical Significance

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Uriate crystals in urinary sediment microscopic examination at a magnification of 1600X

Introduction Urate crystals, also referred to as uric acid crystals, are metabolic by-products of purine metabolism found in urine. They are frequently observed during urine microscopy, especially in patients with altered pH, dehydration, or metabolic disorders. Their presence can be physiological in concentrated urine or …

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

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Collected Ascitic Fluid

Introduction Ascitic fluid microscopy is a laboratory diagnostic method used to examine peritoneal (ascitic) fluid obtained via paracentesis. It helps in identifying cells, microorganisms, and crystals that provide clues about underlying causes such as infection, malignancy, liver disease, or systemic disorders. Principle The principle of …

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

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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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Root Canal Treatment (RCT): Introduction, Principle, Procedure, Clinical Significance, and Keynotes

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Tooth before doing root canal treatment (RCT)

Introduction Root Canal Treatment (RCT) is a dental procedure aimed at preserving a tooth that has been severely damaged or infected due to decay, trauma, or pulp disease. Instead of extracting the tooth, RCT involves cleaning, shaping, disinfecting, and sealing the root canal system to …

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Glass Beads- Introduction, Principle, Test Requirements, Working Mechanism, Application, and Keynotes

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Glass Beads in a Container

Introduction Glass beads are small, inert, spherical particles widely used in microbiology, molecular biology, and cell culture. Their smooth, durable surface and chemical stability make them suitable for disrupting tissues, homogenizing cells, and aiding in sterilization or agitation processes. Principle The principle of using these …

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