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Spongiotic dermatitis tinea

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  • 1. Spongiotic Dermatitis - Tinea
  • 2.
    • The most likely diagnosis is?
    • Nummular dermatitis
    • Psoriasis
    • Contact Dermatitis
    • Berloqu dermatitis
    • Tinea Corporis
    Question
  • 3. Spongiotic Dermatitis - Tinea Tinea (ringworm) is a dermatophyte infection of the skin Fungal Infection of body/scalp can occur at any age and is more common in warmer climates
  • 4. Spongiotic Dermatitis - Tinea There is a broad manifestation of lesion size and location This variability is explained by differences in host immunity and species of fungus
  • 5. Spongiotic Dermatitis - Tinea In classic ringworm, lesions begin as flat, scaly spots that then develop a raised border extending out in all directions. The central area may become brown or clear, and has less scale than the advancing border
  • 6. The vesiculobullous reaction pattern - dermatophyte
    • The prototypical lesion of tinea corporis is an annular scaly patch that may occur singularly or in multiple forms
    • Frequently polycyclic rings occur.
    • Additional features are involvement of the hair follicle with a fungal folliculitis or inflammation with pustules, vesicles, and crusting.
  • 7. Spongiotic Dermatitis - Tinea
    • Clinically, dermatophyte infections are classified by body region.
  • 8. Spongiotic Dermatitis - Tinea Tinea Faciale Tinea corporis Tinea cruris Tinea Capitis Tinea Manum
  • 9. The vesiculobullous reaction patthern - dermatophytosis
  • 10. The vesiculobullous reaction pattern - dermatophyte
    • Dermatophytes are classified in several ways. The ringworm fungi belong to three genera: Microsporum, Trichophyton, and Epidermophyton.
    • The anthropophilic dermatophytes grow only on human skin, hair or nails
    • Zoophilic varieties originate from animals, but may infect human.
    • Geophilic dermatophytes live in soil but may infect humans.
    • KOH prep reveals hyphae
  • 11. The vesiculobullous reaction pattern -dermatophytosis
    • The dermatophytes include a group of fungi (ringworm) that under most conditions have the ability to infect and survive only on dead keratin, that is, the top layer of the skin , the hair, and the nails
    • They cannot survive on mucosal surfaces such as the mouth or vagina where the keratin layer does not form
    • Treatment is antifungal creams for tinea corporis
    • Oral antifungals for tinea capitis and tinea unguium
  • 12.
    • This dermatitis best represents
    • Vitiligo
    • Post inflammatory hypopigmentation
    • Psoriasis
    • Albinism
    • Tinea Versicolor
    Question
  • 13. Tinea Versicolor
    • Caused by the yeast Malassezia furfur
    • It manifests clinically as white or light brown macules that may be discrete or confluent, on the trunk especially.
    • Usually asymptomatic
    • May cause some itching
    • Chest and back are usual location
  • 14. Tinea Versicolor
    • Versicolor means multiple colors
    • The patches may be hyperpigmented
  • 15. Tinea Versicolor
  • 16. Tinea Versicolor
  • 17. Tinea Versicolor
    • Scales scraped from lesions and placed in KOH may be scrutinized by conventional microscopy
    • Short, blunt hyphae and small spores (Spaghetti and meat balls)
  • 18. Tinea Versicolor
    • Woods light exam helps to evaluate the extent of the disease
  • 19. Tinea Versicolor - Therapy
    • For localized disease, administration of topical antimycotics, such as azoles, or selenium sulfide in a shampoo eliminates the causative organisms.
    • For widespread lesions, oral ketoconazole, itraconazole, or fluconazole is curative