Onychomycosis on Leukoformula

Microscopy of Skin and Nail Scrapings for Pathogenic Fungi

Sat, 09 Aug 2025 10:00:01 +0300

Collection of positive skin and nail scrapings for pathogenic fungi

🙏 The images were kindly provided by clinical laboratory diagnostics physician Victoria Gerbutova, Krasnodar.

Fungal Mycelium in Nail Scraping Microscopy for Onychomycosis

Mon, 07 Apr 2025 09:00:01 +0300

Detection of fungal mycelium during microscopy of a native preparation of an affected nail plate 🍄🔬 🙏 The image was kindly provided by clinical laboratory diagnostics physician Masha Roldugina, Moscow

Malassezia furfur in Skin and Nail Plate Scrapings

Tue, 24 Dec 2024 15:00:01 +0300

🔬 Malassezia furfur. Back skin, KOH 20%, magnification x400+zoom. NB! Sometimes this picture can be observed in nail plate preparations. The detection of such curved mycelial threads and groups of double-contoured spores characteristic of M. furfur in NAILS is contamination and has no diagnostic value.

Artifacts in Nail Plate Scraping Microscopy

Fri, 06 Dec 2024 09:00:00 +0300

Sand from under the free edge of the toenail plate. Beautiful, but it makes viewing the sample difficult.

🙏 Material kindly provided by medical laboratory technician Dmitry Emelyanov.

Arthroconidia in Skin and Nail Scrapings in Mycoses

Sat, 16 Nov 2024 19:30:00 +0300

Arthroconidia (sporulated mycelium). Skin, nails, KOH 20%, magnification x400+zoom. Microscopic findings of only arthroconidia are characteristic of mycoses caused by dermatophytes, Onychocola canadiensis, and Scitalidium spp.

🙏 Material kindly provided by med. lab. technician Dmitry Emelyanov.

Candida of Nails and Skin: KOH Microscopy of Samples

Tue, 12 Nov 2024 09:16:05 +0300

🔬 Blastospores (budding cells) and pseudomycelium of Candida fungi. Fingernail plate (photo 1) and interdigital spaces of the feet (photos 2,3,4), KOH 20%, magnification x400+zoom.

✅ In candidal onychomycosis, paronychia (inflammation of the proximal nail fold) precedes onychomycosis. First, the nail fold reddens, becomes shiny, thickens and swells, changing its shape, which causes the cuticle to separate from the nail plate and break down. Inflammation of the nail fold may be accompanied by pain. The course of paronychia is undulating; the nail is gradually involved.

Fungal Mycelium in Nail Scraping for Onychomycosis

Fri, 01 Nov 2024 10:30:00 +0300

Fungal mycelium. Microscopy of a foot nail specimen. Magnification x400. ✅ Pre-treatment of biomaterial with alkali in vitro.

🙏 Image kindly provided by Clinical Laboratory Diagnostics Physician, Anna Ivanova, Moscow

Fungal Mycelium in Nail Scraping for Onychomycosis Diagnosis

Thu, 10 Oct 2024 20:00:00 +0300

Mycelium, nail, magnification x400+zoom, KOH 20%

Material kindly provided by medical laboratory technician Dmitry Emelyanov.

Diagnosis of Candidal Onychomycosis in KOH Preparation

Fri, 23 Aug 2024 13:58:00 +0300

Pseudohyphae and budding cells of a yeast-like fungus of the genus Candida in the nail. Hands’ nail plate, KOH 20%, 24-hour exposure, x400 magnification + zoom. The first photo shows a blastospore with a germ tube emerging from it—a distinctive feature of C. albicans. Fungi of the genus Candida typically affect fingernails (more often on one hand), causing paronychia and proximal onychomycosis (according to Zaias’ classification). Fungi of the genus Candida account for 2-3% of all onychomycosis cases.

Fungal Arthrospores in Nail Samples from Onychomycosis

Tue, 23 Jul 2024 08:41:00 +0300

Chains of arthrospores (arthroconidia) and clusters of spores. Nail, magnification x400+zoom, KOH 20%, exposure - 24 hours.

👉 Material kindly provided by medical laboratory technician - Dmitry Emelyanov.

Myelin in Nail Samples: Distinguishing from Fungal Spores

Sat, 13 Jul 2024 12:41:00 +0300

Myelin. Nail. Often mistakenly identified as fungal spores. It differs from spores by its variety of shapes (often quite bizarre) and sizes. KOH 20%, sample preparation for 24 hours.

Direct Microscopy of Nail Plates in Onychomycosis

Mon, 24 Jun 2024 10:30:00 +0300

Variants of microscopic findings during nail plate examination and their interpretation. Source: A. Yu. Sergeev. Fungal Nail Diseases.

👉 Material kindly provided by medical laboratory technician - Dmitry Emelyanov.