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Thanks jtjordan2333

Acne Vulgaris

Life long disease
Tx: Retinin A & topical clindamycin
Infection by P. acnes


Older women
4 stages: flushing, erythema & telangiectasia, papules and pustules, rhinophyma

Verrucae Histology

Koilocytic atypia = HPV
Keratohyaline granules, koilocytes

Verrucae vulgaris histo

Papillary architecture w/ hyperkeratosis

Molluscum contagiosum

Trunk & anogenital
Spread by pox virus
Umbilicated papules < 5mm
Histo: characteristic molluscum bodies


Highly infectious -> S. aureus
"Honey-colored crust"
Subcorneal pustule formation

Superficial fungal infections

Stratum corneum only
Onychomycosis: nail infection

Lyme disease

Tick (Ixodes) carries infectious agent (Borrelia burdorfi)
Erythema migrans (classic target lesion)

1st stage: erythema chronicum migrans rash
2nd stage: arthritis, myocarditis, pericarditis, etc.
3rd stage: neurological deficits

Start on TETRACYCLINE immediately

Lyme disease


Rash is allergic response to bite + excoriation
Eggs = nits
3 types: head, body, pubic


Itch due to allergic response to mite body proteins (to their poop)
Trails & superimposed excoriation
Sacroptes scabei infectious agent

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