Spongiotic dermatitis tinea

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1. Spongiotic Dermatitis - Tinea

2. •The most likely diagnosis is?
c)Nummular dermatitis
d)Psoriasis
e)Contact Dermatitis
f)Berloqu dermatitis
g)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
b)Vitiligo
c)Post inflammatory
hypopigmentation
d)Psoriasis
e)Albinism
f)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