4.1.2 Skin Pathology III Flashcards
What conditon?
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Insect bite reaction
What condition? There is a child with honey-colored crusts around his face.
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Impetigo
Child scratching red papules on her legs. Name condition
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Insect bite
What virus is associated with molluscum contagiosum?
MC virus
What condition?
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Scabies
What are the common sites of acne vulgaris?
Chest/back/face
Name this condition
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Urticaria aka wheals
What is the defective enzyme in porphyria cutanea tarda?
uroporphyrin decarboxylase (can be genetic, but usually due to EtOH)
Name the condition?
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Erythema Multiforme
What is the common demographic affected by cicatricial alopecia?
AA females
Name this condition.
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Psoriasis
What condition?
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Molluscum Contagiosum
Answer?
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Condition: Urticaria
Answer: Perivascular dermatitis
Name this cell found in a wart?
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Koilocyte - keratinocytes with a shruken nucleus with a perinuclear halo
Why is itching worse at night with scabies?
Boy and girl scabies are trying to find each other
How is molluscum contagiosum transmitted?
Direct
How do you biopsy scabies?
Scrape biopsy starting at the delta wave of the burrows
Histopath of what disease?
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Molluscum contagiosum
Name this condition
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Alopecia areata
Name this condition
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Psoriasis
What are black heads?
Open comedones
What condition?
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Cicatricial alopecia
This is the histopathology of what condition?
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Verruca vulgara (wart)
Name this conditon?
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Pityriasis Rosea
(The diagnosis of this condition is mostly clinical)
What virus is associated with verruca vulgara (wart)?
HPV
What is the color of the crusting in impetigo?
Honey-color crusts
Name this conditon
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Erythema nodosum
What is this key feature in a PAS stain of tinea?
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Fungal hyphae
What is the common name for verruca vulgara?
Wart
Identify the pathogenesis of urticaria
Mast cell degranulation
Name this condition
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Rosacea - Miles has this condition
(Can be worsened by alcohol)
Name condition. Answer condition.
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Condition: verruca vulgaris (warts)
Answer: B. HPV
What is this condition? What type of infection?
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Tinea (Ringworm); dermatophytes - fungal infection
Name the key histopathologic feature in this condition
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Molluscum body
What are these characteristic cells of EM?
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Dead reds (dying keratinocyes) due to the release of cytokines
What is unique about urticaria in its skin pathology?
The epidermis is normal
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Name this condition
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Porphyia cutanea tarda
Name this condition.
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Impetigo
What does umbilcation of the papule mean in molluscum contagiosum?
Indentation of the center of the papule
What condition?
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Alopecia areata
If urticaria occurs deeper in the skin, what might occur?
Angioedema
What condition?
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Pityriasis Rosea
(Trailing Scale, Christmas tree distribution, Herald plaque - one lesion followed multiple others)
Name this conditon
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Acne vulgaris
Name this condition?
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Verruca vulgaris
What condition?
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Alopecia areata
Name this condition
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Porphyia cutanea tarda
What is the characteristic lesion of EM?
Target lesion
What condition?
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Scabies
What is different b/t urticaria and tinea?
Urticaria doesn’t have scales. Both are annular
What type of lesion in acne vulgaris?
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Open comedo
What is the common organism that causes impetigo?
S. Aureus
Condition. Answer ?
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Condition: Scabies
Answer: E. Usually <100 organisms present
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The conditon is plaque psoriasis
Answer: B. Arthritis
Where are the lesions of scabies commonly found?
Finger webs, axilae, umbilicus, areolas, genitalia
Name condition. Answer question.
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Condition: Erythema nodosum
Answer: A. Sarcoidosis