DERMATOLOGY

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DERMATOLOGY
DISEASES OF THE HAIR NAILS
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ANDROGENETIC ALOPECIA
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ANDROGENETIC ALOPECIA
Loss of hair in the frontotemporal and vertex
areas. Typical male hair loss distribution.
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ANDROGENETIC ALOPECIA
Male hair loss pattern
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ANDROGENETIC ALOPECIA
Hair transplantation
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ANDROGENETIC ALOPECIA
Diffuse thinning of hair on the crown, but also
in the frontotemporal region of the scalp after
treatment with androgens .
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ANDROGENETIC ALOPECIA
Female hair loss pattern
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ALOPECIA AREATA
Sharply outlined portion of scalp with complete
alopecia without scaling, erythema or scarring.
Short, broken-off hair shafts (exclamation
point hair) appear as short stubs emerging from
the bald scalp.
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ALOPECIA AREATA
Multiple, confluent, involved sites on the scalp
with "exclamation point hairs" and evidence of
regrowth in areas. Newly regrowing hairs may be
fine and gray-white in color.
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ALOPECIA AREATA
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ALOPECIA AREATA
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ALOPECIA UNIVERSALIS
This patient has lost all scalp hair, eyebrows,
eyelashes, beard, and all body hair.
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Anatomy of the Nail
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NAIL SIGNS
Nail clubbing
Nail pitting
Hutchinsons sign - melanoma
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Subungual hematoma
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Ingrown toe nail
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Ingrown toe nail
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ONYCHOLYSIS
Distal nail bed separated from the nail plate in
2 nails.
The subungual space may be filled with
hyperkeratotic debris
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ONYCHOLYSIS
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ONYCHOMYCOSIS
Distal subungual hyperkeratosis and onycholysis
involving most of the nail bed of the great
toenails these findings are usually associated
with tinea pedis.
DSO
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ONYCHOMYCOSIS
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ONYCHOMYCOSIS
The entire fingernail plate is thickened and
dystrophic and is associated with a paronychia
infection both findings were caused by Candida.
in a patient with advanced HIV disease .
CANDIDA
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PARONYCHIA
The nail fold is erythematous, edematous, with
early abscess formation, and is very painful.
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PARONYCHIA
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PARONYCHIA
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PARONYCHIA
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FELON
A puncture wound of the fingertip resulted in
formation of a pyogenic granuloma and
Staphylococcus aureus infection of the
subcutaneous tissue of the distal phalanx early
abscess formation.
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FELON