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Introduction of KOH Mount Footages of Various Fungi

KOH Mount Footages of Various Fungi is the collections of fungal elements encountered during KOH mount microscopy of a variety of clinical specimens. The  KOH Wet Mount is very important for presumptive diagnosis of the type of fungal infections whether ringworm, aspergillosis, dermatomycosis, blastomycosis, mucormycosis, otomycosis, and so on. It is also helpful in the selection of appropriate culture media for the isolation of etiological fungal agents. As you know, potassium hydroxide (KOH) is a strong alkali. When specimens such as pus, skin, hair, nails, or sputum mix with, it softens, digests, and clears the tissues i.e. keratin present in the skin surrounding the fungi so that the fungal elements( yeast, a cell with pseudohyphae, budding, hyphae, granules, conidia, etc.) of fungi can be seen under a microscope.

KOH Mount Footages of Various Fungi List

Candida

Aspergillus

Dermatophytes (Trichophyton, Microsporum, and Epidermophyton species)

Penicillium marneffii

Exserohilum

KOH Mount Footages of Various Fungi with Descriptions 

• Nail clipping for KOH mount: Fungal Infected Nail Microscopy showing Hyphae and Chlamydospores of Dermatophytes

Nail clipping for KOH mount Potassium hydroxide (KOH) mount of Nail Microscopy

Dermatophytes in KOH mount Under the Microscope

Nail clipping and KOH mount Microscopy

Fungal Infected Nail under the Microscope at various magnifications

Epidermophyton floccosum

Fungal Hyphae and chlamydospores

For Fungal Nail Infection: Introduction, Mode of Infection, Symptoms, Predisposing Factors, Lab Diagnosis, Treatment, Prevention, and Keynotes @ https://universe84a.com/fungal-nail-infection/

• Skin Scrapping KOH mount: Dermatophytes in KOH mount

Cutaneous mycoses: It is caused by dermatophytes a group of three genera Trichophyton, Microsporum, and Epidermophyton.

Ringworm Causing Fungi, Trichophyton in KOH mount of Skin Scale, Growth on SDA and LPCB Preparation

Fungal Hyphae in KOH Preparation of Pus Discharge  @ https://universe84a.com/collection/fungal-hyphae-koh/

Sputum for KOH mount: Fungal hyphae under the microscope in KOH mount of sputum

Fungal hyphae observation

KOH mount preparation of sputum Showing septate hyphae indicating the presence of fungus i.e. Fungal infection

KOH mount of Ear/aural discharge: KOH mount of Aural discharge with fungal elements, Hyphae and Conidia

Sputum in KOH Mount showing fungal elements: 

Sputum in KOH Mount showing fungal elements

Fungus in sputum

Yeast cells and hyphae in the sputum sample

Yeast cells and pseudohyphae under the microscope

Fungal elements microscopy at various magnifications

Fungal Hyphae in KOH Mount of Sputum

The  KOH Wet Mount is very important for presumptive diagnosis of the type of fungal infections whether ringworm, aspergillosis, dermatomycosis, blastomycosis, mucormycosis, otomycosis, and so on. It is also helpful in the selection of appropriate culture media for the isolation of etiological fungal agents.

Chromoblastomycosis patient biopsy in KOH mount showing Condia and hyphae-

Chromoblastomycosis is a chronic fungal infection of the derma/ skin and subcutaneous tissue. The infection usually occurs from a traumatic injury and inoculation of fungus from a specific group of dematiaceous fungi like  Fonsecaea pedrosoi, Phialophora verrucosa, Cladophialophora carrionii, etc.

Septate hyphae in KOH mount of Sputum: It is an indicator of fungi other than aseptate fungal-like Mucor, Penicillium, Rhizopus, Absidia, etc.

Fungal elements in KOH mount of Sputum sample

Plenty of fungal elements

Yeast cells

Pseudohuphae

Budding yeast

Exserohilum conidia and hyphae in KOH Mount of Skin Scrapping

KOH mount of sputum under the Microscope showing fungal elements yeast cells and fungal hyphae

Aspergillus in KOH mount, grow on SDA, LPCB Preparation showing Condia, Conidiophores, Phialides

Aspergillus in KOH mount, grow on SDA, LPCB Preparation showing Condia, Conidiophores,Phialides, Vesicle

KOH mount of aural discharge showing septate fungal hyphae Growth of fungus on SDA resembling Aspergillus fumigatus

Later identified using LPCB tease mount

Note: Colour of conidia and arrangement of phialides

Fungal hyphae and conidia in KOH mount of Sputum

Infection/Ochroconis/ in Renal transplant/ Fungal

Wound drainage in KOH mount showing septate hyphae

Contd… KOH Mount Footages of Various Fungi