Skin under attack Flashcards

1
Q

Dx?

A

Molluscum contagiosum

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2
Q

The causative agent of this lesion replicates in:

A

Nucleus

(Shingles - VZV - herpesviruses are DNA viruses which replicate in the nucleus)

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3
Q

Causative agent?

A

HPV2

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4
Q

Most likely causative agent?

A

Trichophytan tonsurans

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5
Q

Test to definitively diagnose the agent of this infection?

A

Tzank smear

(Herpetic whitlow - look for multinucleated acanthotic keratinocytes)

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6
Q

Two names for this lesion?

A

Tinea faceis, Ringworm

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7
Q

Causative agent?

A

Poxvirus

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8
Q

HPV serotype?

A

HPV1

(Palmoplantar warts)

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9
Q

HPV serotype?

A

HPV 2,4

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10
Q

Most likely causative agent?

A

Malassezia

(Tinea versicolor - notice hypopigmentation in round patches)

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11
Q

Dx?

A

Herpetic whitlow

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12
Q

HPV serotype?

A

HPV 3,10

(Flat warts)

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13
Q

Unlike this lesion which generally spares the penis and scrotum, ___, ___, and ___ usually will involve the penis and scrotum.

A

Scabies

Genital herpes

Genital warts

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14
Q

Dx?

A

Tinea pedis

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15
Q

Most likely causative agent?

A

Strep

(Erlysipelas)

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16
Q

How does the primary infection with this virus differ from the primary infection with the causative agent of herpes labialis?

A

HSV2 (genitalis) initial infx = severe, vesicles, fever, lethargy

HSV1 (labialis) initial infx = usually asymptomatic

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17
Q

Dx?

A

Molluscum

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18
Q

Dx?

A

Tinea corporis

19
Q

Dx?

A

Herpes

(Tzank smear showing multinculeated acanthotic keratinocytes)

20
Q

Most likely bugs?

A

Staph aureus, strep pyogenes

21
Q

What time of year is this infection most common?

A

Late winter - early spring

22
Q

Where does this patient most likely live?

A

Tropical areas

(Tinea versicolor caused by Malasezzia)

23
Q

Dx?

A

Oral candidiasis

24
Q

Dx?

A

Tinea capitis

25
Two bugs that may be causing this?
Strep pyogenes or staph auerus (Folliculitis)
26
The causative agent of this lesion most likely lives in which skin layer?
Stratum corneum (Tinea corporis - most superficial fungal infections caused by dermatophytes which eat keratin)
27
Dx?
Tinea cruris
28
Dx?
Tinea facia
29
Dx?
Tinea pedis
30
How to tell if this is a furuncle or folliculitis?
Furuncle - infx of hair follicle down to subcutis Folliculitis - superficial infection of hair follicle
31
Dx?
Tinea versicolor
32
Why might this patient have developed this infection?
Taking Abx (Vaginal candidiasis)
33
Two vaccines used for this virus?
Zostavax, varivax
34
Two possible diagnoses?
TSS, Kawasaki disease
35
What infection would this patient have had before this one?
Chickenpox (Shingles)
36
In which demographic is this disease common?
Elderly (Erysipelas)
37
Dx?
Folliculitis
38
Dx?
Furuncle
39
Dx?
Impetigo
40
Characteristic presentation?
Pain out of proportion to clinical findings
41
Pathogenesis?
S. auerus antigen against desmoglein
42
This lesion most likely occured following?
Surgery or deep abscess
43