Derm Exam 1 > Blisters > Flashcards

Blisters Flashcards

(63 cards)

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1
Q

what is the difference between a vesicle and a bulla

A
  • diameter
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2
Q

what distinguishes erosion from ulcer

A
  • depth
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3
Q

what is the name for a small blister

A
  • vesicle
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4
Q

what is the name for a large blister

A
  • bulla
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5
Q

what is the name for when blisters unroof

A
  • erosion
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6
Q

what is the name for dried transudate

A
  • crust
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7
Q

what does acral mean

A
  • on distal extremities - hands and feet
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8
Q

what does arcuate mean

A
  • in an arc or curve
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9
Q

what does dermatomal mean

A
  • follows distribution of sensory nerve
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10
Q

what does intertriginous mean

A
  • in the body’s folds
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11
Q

what does linear mean

A
  • straight line
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12
Q

_____ is caused by an eruption of latent varicella zoster virus

A
  • herpes zoster
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13
Q

group vesicles on an erythematous base are typical of

A
  • herpes zoster
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14
Q

herpes zoster is usually preceded by

A
  • pain or burning
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15
Q

shingles in the immunocompetent versus HSV

A
  • shingles occurs once - HSV recurs
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16
Q

treatment for shingles

A
  • acyclovir - valacylovir
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17
Q

clues to diagnosis of shingles

A
  • dermatomal eruption - unilateral distribution
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18
Q

grouped vesicles on an erythematous base on the chin and lip are most likely

A
  • herpes simplex
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19
Q

what do the vesicles of herpes simplex look like

A
  • pustular
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20
Q

HSV1 favors what regions

A
  • mouth and nose
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21
Q

HSV2 favors what regions

A
  • genitalia - buttock - thighs
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22
Q

perianal erosions or ulcerations in the immunosuppressed patients are usually _____

A
  • herpes simplex
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23
Q

recurrent ulcers on buttocks or genitals are _____ until proven otherwise

A
  • HSV
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24
Q

what is herpetic whitlow

A
  • form of herpes on the finger
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25
what is Tzanck prep problems
- scrape and microscopic exam - can't differentiate VZV from HSV
26
viral culture for HSV can be performed when ____ is present
- fluid
27
\_\_\_\_\_ can differentiate HSV 1 and 2 as well as VZV
- direct fluorescent antibody test
28
\_\_\_\_\_\_\_\_\_ determines past exposure but may not directly relate to clinical findings
- HSV antibody detection
29
\_\_\_\_\_\_\_\_\_ is a rapid and sensitive diagnostic test that differentiates HSV1, HSV2, and VZV and is the initial test of choice at UNC
- fluid swab
30
treatment for HSV
- acyclovir
31
why don't we use famciclovir or valacyclovir for HSV treatment their benefit
- more expensive - easier dosing
32
what presents as very pruritic vesiculopapules on the palms, soles, and sides of the fingers
- dyshidrotic eczema
33
after healing, dyshidrotic eczema leave behind a mark with a _______ color called \_\_\_\_\_\_\_\_
- mahogany color - post-inflammatory hyperpigmentation
34
mainstay of treatment of dyshidrotic eczema
- potent topical steroids
35
what conditions have vesicles located on the dorsal foot
- contact dermatitis - insect bites
36
what conditions have vesicles located on the sides of feet and toes
- dyshidrotic eczema
37
what conditions have vesicles located on the soles
- tinea pedis
38
what conditions have vesicles located on the balls, heels of foot
- friction blisters
39
what conditions have vesicles located on the mouth/nose/eyes
- HSV - bullae impetigo
40
what conditions have vesicles located on the chest and back in a dermatomal pattern
- VZV
41
what conditions have vesicles located on the fingers
- dyshidrotic eczema - contact dermatitis - herpetic whitlow
42
what conditions have vesicles located on the arms and legs
- contact dermatitis
43
what conditions have vesicles located on the genitalia with a bathing suit distribution
- HSV
44
what conditions have vesicles located on the feet
- dyshidrotic eczema - tinea pedis - allergic contact dermatitis
45
in which conditions does pain precede onset
- HSV - VZV
46
in which conditions does itch precede onset
- allergic contact dermatitis - dyshidrotic eczema - VZV
47
in which conditions does trauma precede onset
- friction blister - pressure ulcer - cryotherapy
48
in which conditions do you have recurrent blisters
- HSV
49
what is the primary VZV infection
- chicken pox
50
buzzword condition for diffuse vesicles on an erythematous base with various stages of healing
- chicken pox
51
how to diagnose chicken pox
- PCR - DFA - cultura - Tzank
52
in pemphigus vulgaris, you have autoantibodies to _________ between keratinocytes resulting in ______ bullae and erosions
- desmogleins 1 and 3 - superficial
53
pemphigus vulgaris is usually seen in which age group
- elderly
54
pemphigus vulgaris diagnose by
- directly immunofluorescence
55
pemphigus vulgaris classically has _____ involvement
- oral
56
autoantibodies to desmoglein 3 and 1 in pemphigus vulgaris form what pattern
- net-like
57
bullous pemphigoid, you have autoantibodies to _____ resulting in _______ bullae on pruritic, urticarial base
- hemidesmosome - deep, tense
58
bullous pemphigoid split between which two layers
- basement membrane and basal layer
59
bullous pemphigoid affects what age
- elderly
60
bullous pemphigoid which antibodies found with direct immunofluorescence
- BPAG2 antibodies
61
bullous pemphigoid has what pattern of staining at the basement membrane zone
- linear staining
62
when would you do a biopsy for direct immunofluorescence test
- autoimmune bullous diseases
63
bullous impetigo can be diagnosed with
- bacterial culture
Derm Exam 1
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