10 - Derm - Fungal infections - Dermatophyte infection Flashcards Preview

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Flashcards in 10 - Derm - Fungal infections - Dermatophyte infection Deck (15):
1

three types of fungi able to multiply within keratinised tissue

microsporum
trichopyton
epidermophyton

2

5 types of tinea

tinea capitis - scalp
tinea cruris - groin
tinea pedis - athletes foot
tinea corporis - body
tinea unguium - nail

3

capitis - common in who? transmission?

kids - close contact, contaminated brushes, barbers instruments

4

clinical features of capitis

circular scaling patched with alopecia - may scar
pustules and crusting
severe> lymphadenopathic kerion (boggy purulent plaque)

5

capitis DDx

seborrheic eczema
discoid lupus erythematous

6

corporis - usually where? clinical features?

glabrous skin (hairless)
asymmetrical itchy scaly plaque with red border and central clearing

7

corporis DDx

psoriasis
pityriasis rosea
pityriasis versicolor

8

cruris - (groin) - appearance? DDx?

well demarcated red plaques

ddx
candidiasis (but no satellite lesions)
psoriasis
atopic eczema
seborrheic eczema
erythrasma

9

pedis - appearance and features?

diffuse scaly erythema of soles
may affect toe clefts (white and fissured)

10

pedis - complications

2ndary bact inf > cellulitis
autoeczematisation

11

unguium - appearance? DDx

yellow thickened nail, onchyolysis, hyperkeratosis

ddx - psoriasis, trauma, moulds

12

Ix for tinea

woods light - some species fluoresce green
skin scraping, nail clipping, scales for culture and microscopy

13

mgmt tinea - topical?

if localised uncomplicated tinea of body/flexures - micronazole cream, terbinafine cream

14

mgmt tinea - systemic indications

widespread infection, tinea pedis, tinea unguium, tinea capitis

15

tinea unguium mgmt
tinea capitis in children mgmt

TU - oral terbinafine
TCinC - oral griseofulvin for 6-8 weeks

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