Dermatology Flashcards

1
Q

Name the bulls and blistering skin diseases- most have pemphigus or “p” in the name.

A

1) Pemphigus Vulgaris
2) Bullous Pemphigoid
3) Pemphigus Foliaceus
4) Porphyria Cutenous Tarda
5) Drug/Hypersensitivity

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2
Q

Causes of pemphigus vulgaris?

A

Idiophatic
Ace inhibitors
Penicillamine

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3
Q

Characteristic of P vulgarism?

A

Thin fragile skin that comes off easily - Nikolskly sign
Age: 30-40s
Severity: Life-threatening
Mouth involvement: yes

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4
Q

Diagnosis of P Vulgaris?

A

Skin biopsy

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5
Q

Tx of P vulgarism?

A

Steroids -> Prednisone –if doesn’t work– use Azathioprine, Mycophenolate, Cyclophosphamide.

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6
Q

Causes of Bullous pemphigoid?

A

Most often drug related -sulfa being a biggie.

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7
Q

Characteristics of B. pemphigoid?

A

Deep, thicker walled blisters. Less likely to rupture.
Age: 70-80s
Severity: Mortality is less likely – less chance of infection
Mouth involved: rarely

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8
Q

Dx of B. pemphigoid?

A

Biopsy– Immunofluorescent antibodies

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9
Q

Tx of B. pemphigoid?

A

Steroids- Prednisone

Alternative: Tetracycline or Erythromycin with nicotinamide

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10
Q

Causes of Pemphigous Foliaceus?

A

Autoimmune or drug induced–ACEi or NSAIDs

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11
Q

Dx and Tx

A

Biopsy

Steroids or Azathioprine, Mycophenolate or Cyclophosphamide

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12
Q

Causes of porphyria cutanea tarda

A

Bad porphyrin metabolism = photosensitivity reaction because high accumulation of porphyrin in the skin

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13
Q

Associated with PCT?

A
Alcoholism 
Liver dz
Chronic hepatitis C- other liver Dzs
Oral Contraception
Diabetes
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14
Q

Characteristics of PCT

A

Sun exposure form non-healing blisters
Skin can become hyper pigmented
Hypertrichosis of the face– abnormal amount of hair.

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15
Q

Dx of PCT

A

Urine test – look for uroporphyrins 2-5 higher than coproporphyrins

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16
Q

Tx of PCT

A
Stop drinking EtoH
Stop all estrogen use
Sun screen 
Phlebotomy to remove iron. Deferoxamine.
Chloroquine to increase the extraction of porphyrins.
17
Q

Different types of Drug Eruption/Hypersensitivity skin lesions?

A
Urticaria
Moniliform Rash
Erythema Multiforme
Stevens-JOhnson Syndrome
Toxic Epidermal Necrolysis
Fixed drug reaction
Erythema nodosum