Microscopic features of Malassezia furfur in KOH preparations: criteria for mycelial and spore detection, differential diagnosis of onychomycosis and contamination.
🔬 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.
🙏 Material kindly provided by medical laboratory technician Dmitry Emelyanov.
Microscopic view of arthroconidia and sporulated mycelium in 20% KOH preparations from skin and nail mycoses caused by dermatophytes.
Microscopy features of Malassezia fungi in skin scrapes: characteristic unipolar budding of yeast cells in a 20% potassium hydroxide (KOH) preparation.
Examples of skin and nail scraping microscopy in mycoses: visualization of mycelial threads, arthrospore chains, and pathogenic fungal elements in native preparations.
