Dermatophytosis Cutaneous mycosis Dermatomycosis Yeast Saprophytes

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Presentation transcript:

Dermatophytosis Cutaneous mycosis Dermatomycosis Yeast Saprophytes Systemic mycosis Dermatophytes Dermatophytosis

Dermatophytosis Definition Greek English Persian Dermatophytes

Dermatophytosis Dermatophyte Sexual Asexual Trichophyton Microsporum Arthroderma Asexual Macroconidia Trichophyton Microsporum Epidermophyton

Dermatophytosis Trichophyton Microsporum Epidermophyton Cylinder Spindle Epidermophyton Club

Dermatophytosis Trichophyton Microsporum Epidermophyton T.rubrum, T.mentagrophytes, T.violaseum, T.schoenleinii, T.verrucosum Microsporum M.canis, M.gypseum Epidermophyton E.floccosum

Dermatophytosis Geophilic Zoophilic Anthropophilic M.gypseum M.canis, T.verrucosum Anthropophilic T.rubrum, T.violaseum, T.schoenleinii E.floccosum

Dermatophytosis Tinea capitis Tinea barbae Tinea cruris Tinea pedis Tinea mannum Tinea corporis Tinea unguium

Tinea capitis Definition Trichophyton & Microsporum Clinical manifestation Crust Krion Scatulum Age Genus Ectothrix, Endothrix, Favus

Ectothrix Outside Krion Cuticle Gray patch Age Genus After maturation M.canis, M.audouinii, T.verrucosum, T.mentagrophytes

M.canis Zoophilic Dog & cat Yellow Microconidia Few Macroconidia Thick wall Knob

M.gypseum Geophilic Favus( may be) Red Don't have knob

Endothrix Inside Cuticle Black dot, bald patch Age Genus After maturation Anthropophilic T.violaceum, T.sudanense, T.tonsuranse

Favus Hyphae (Air canal) lustreless scatulum Age Genus After maturation Cheesy or mouse judder T.schoenlinii

T.schoenleinii Anthropophilic Favic chandelier

Differential diagnosis Alopecia Trichotillomania

Laboratory diagnosis Sampling Culture Direct Sesser Scc(2) Ectothrix, Endothrix, Favus

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Dermatophytosis Tinea capitis

Tinea barbae Definition Genus Age Beard & mustache Zoophilic T.verrucosum, T.mentagrophytes

T.Verrucosum Zoophilic Cow & cattle 37° Chlamydioconidia

Tinea barbae Clinical manifestation Circular Scaling Vesicle Ectothrix, Endothrix, Favus

Dermatophytosis Tinea barbae

Dermatophytosis Tinea barbae

Dermatophytosis Tinea barbae

Tinea barbae Differential diagnosis Alopecia Laboratory diagnosis

Tinea cruris Definition Sever itch With tinea pedis Ecology Male Anthropophilic E.floccosum, T.mentagrophytes, T.rubrum

E.floccosum Anthropophilic Do not have microconidia Macroconidia 2-4 or 3-5 cells E.stoackdaleae

Tinea cruris Clinical manifestation Maculae Red Vesicle Erythematic Itch Don't involve pubis

Dermatophytosis Tinea cruris

Dermatophytosis Tinea cruris

Dermatophytosis Tinea cruris

Dermatophytosis Tinea cruris

Tinea pedis Athlet ́s foot Age Shoes, warm, moisture T.M, T.R, E.F

Tinea pedis Clinical manifestation Chronic intertrigenous Chronic papulosquamous hyperkeratotic Vesicular or sub acute Acute ulcerative

Tinea pedis Chronic intertrigenous Common type White scale Between 5,4 & 4,3 Itch

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Tinea pedis Chronic papulosquamous hyperkeratotic T.rubrum Moccasin foot Scaling

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Tinea pedis Vesicular or sub acute T.M, T.R Id reaction Dermatophytid

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Dermatophytosis Tinea pedis

Tinea pedis Acute ulcerative Bacteria Treatment is difficult

Tinea mannum Definition Position Clinical manifestation Agents

T.mentagrophytes 4 strain Interdigital is anthropophilic Erinaci is zoophilic (-) Hair penetration DW 20 ml 10% yeast extract 5D Horse hair 25° to 4 week

T.mentagrophytes Hyphae Spiral or coil Macroconidia Club

T.rubrum Anthropopilic CMA + Urease - Hair - Sorbitol +

Tinea corporis Definition Trichophyton Microsporum Body reaction Contagious Direct & indirect Annular Center & margin Vesicle T.M, T.V

Dermatophytosis Tinea corporis

Dermatophytosis Tinea corporis

Dermatophytosis Tinea corporis

Tinea corporis Tinea imbricata T.concentricum Anthropophilic Clinical manifestation Genetic Ecology

Tinea imbricata

Tinea imbricata

Laboratory diagnosis Tinea cruris, pedis, mannum & corporis Sampling Direct Culture

Tinea unguium Definition Onychomycosis Yeast Saprophytes scopulariopsis

Tinea unguium Leukonychia mycotica invasive

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Tinea unguium

Dermatophytosis Onychomycosis

Dermatophytosis Onychomycosis

Dermatophytosis Treatment Griseofulvine Terbinafin

Factors involved Regional Individual Heat Humidity Local Systemic Hyperhydrosis Local steroid Systemic Immunosuppression Corticosteroid

Antigens Complex structure Cell wall Antigen Enzymes

Cell wall Antigen Chitin Glucan Mannoprotein Galactomannan

Enzymes Keratinase Elastase Collagenase Proteinase Metalloproteinase Serine proteinase

Immune system Skin Unsaturated transferin α2 macroglobulin

Skin Physical & chemical barrier Innate immunity Low humidity UV Flora

skin Keratinization & Epidermal Proliferation Antifungal agent Increase turn over Shedding Antifungal agent Saturated fatty acid

Immune system Unsaturated transferin α2 macroglobulin Free iron e chain transport Krebs cycle α2 macroglobulin Keratinase inhibition

The inflammatory response Reverse relationship Inflammatory & chronic Anthropophilic Inflammation low Infection permanent Zoophilic & geophilic Inflammation sever Infection self limitation

The inflammatory response Dermatophyte → complement → chemo tactic alternative C5a Neutrophile Activation Myeloproxidase Oxidative Hydrogen peroxide Super oxide Defensin Nonoxidative Catepsin Lactoferin

Humeral immunity Types of Ab IgG, IgM, IgA & IgE Nonprotective

Cell mediated immunity Deficiency in CMI Permanent infection Recurrent infection

Regulation Of Immune Response Mannan Immune inhibitor Blocking of monocyte receptors In vitro Inhibition of lymphoblast production Inhibition of lymphocyte proliferation

Immunization T.verrucosum LFT-130 Drug therapy