Onychomycosis laboratory findings: Difference between revisions
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==Overview== | |||
Laboratory findings consistent with the diagnosis of onychomycosis include potassium hydroxide smear, culture and histology. | |||
==Laboratory findings== | ==Laboratory findings== | ||
Latest revision as of 19:37, 28 August 2021
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Onychomycosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Onychomycosis laboratory findings On the Web |
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American Roentgen Ray Society Images of Onychomycosis laboratory findings |
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Risk calculators and risk factors for Onychomycosis laboratory findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Laboratory findings consistent with the diagnosis of onychomycosis include potassium hydroxide smear, culture and histology.
Laboratory findings
If all nails are affected then fungal infection is improbable. To avoid misdiagnosis as psoriasis, lichen planus, contact dermatitis, trauma, nail bed tumor or yellow nail syndrome, laboratory confirmation may be necessary. The three main approaches are potassium hydroxide smear, culture and histology. This involves microscopic examination and culture of nail scrapings or clippings. Recent results indicate that the most sensitive diagnostic approaches are direct smear combined with histological examination[1] and nail plate biopsy using periodic acid-Schiff stain[2].