viral skin infections and viral xanthems Flashcards

0
Q

all warts are caused by

A

HPV

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1
Q

the only reason you biopsy a genital wart is to

A

check for cancer

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2
Q

30-40 types of HPC produce

A

anogenital warts

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3
Q

15-20 types of HPV are

A

cancerous

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4
Q

in F<30, HPV is

A

transient

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5
Q

in F>30, HPV is

A

persistant and can turn to cervical cancer

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6
Q

what do you protect HPV with

A

gardasil

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7
Q

appearance of warts

A

raised projection with blood vessels
uniform mosaic pattern from above
hyperkeratotic surface with papillomatosis

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8
Q

scale removal of warts shows

A

punctuate vessels (vs corn which has smooth base)

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9
Q

non-uniform pattern found in

A

seborrheic keratosis

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10
Q

plantar warts

A

similar to corn/callus, but their base with punctuated microhemorrhages is diagnostic

*remove only if painful

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11
Q

digitate warts

A

digits, occurs on thin skin surface

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12
Q

genital warts

A

warts spread rapidly on moist mucous surfaces, but are also easy to treat

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13
Q

plane or flat warts

A

hard to treat

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14
Q

anal warts in kids

A

suspect abuse

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15
Q

seborrheic keratosis

A

benign skin growth- not viral

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16
Q

pearly penile papules

A

anatomy variant of normal (angiofibroma) that may wart

17
Q

molluscum contagiosum

A

multiple dome shaped pink papules

umbillicated and contain a caseous plug

18
Q

what type of virus is molluscum contagiousum

19
Q

when do you frequently get molluscum

A

on chapped, eczema skin–>spreads–>treat eczema first

20
Q

xanthem

A

skin eruption bursting with blood

wide=spread, symmetric, erythematous, discrete or confluent macules and papules that initally do not form scale

21
Q

FIfth disease

A

URI symptoms cuased by B19 parovirus

22
Q

5th disease erythema patterns

A

facial- slapped cheap (spare nasolabial folds)

net pattern erythema- begins on extremities, 2 days after onset of facial erythema to trunks and buttocks

23
Q

when does net pattern fade

24
fetal infection of 5th disease
can cause death
25
other symptoms of adults with 5th disease
poly arthropathy syndrome itching, arthralgias, arthritis minimics RA in acute state
26
hand, foot, mouth dz
coxsackievirus A16 and enterovirus 71 | fever, cough+ cutaneous lesions- hand, feet, buttocks
27
how do hand foot mouth disease lesions look
begin as 2-10mm red macule -->later central, gray, oval vesicle develops
28
acquiring HSV
most infections are acquired from asymptomatic individuals
29
pathway of HSV
enters through skin/mucous surface-->latency in DRG and other tissues-->recurrence where it ravels down nerve from DRG to skin-->outbreak with shedding, but not necessarily with lesions
30
HSV1
primary gingibostomatis
31
how does HSV1 present
mostly orolabial (cold sores, fever blisters)
32
HSV2
recurrent vesicles-scattered, macerated, under foreskin
33
prodrom of HSV2
itch, pain
34
what does hSV look like
grouped vesicles uniform in silze-->umbilicated pustules-->crusts-->resoultions usually without scarring
35
primary infection
6 day incubation-->vesicles over wide area-->fever-->resolves in 2 weeks *shedding occurs before crust (vesicle/erosion)
36
reactivation of HSV
with sunlight, stress, menstruation
37
recurrent hsv infection course
prodrome-->grouped vesicles without fever/LAP-->resolve in 5-10 days
38
tx hsv
acyclovir for primary-d oes not cure but is suppressive
39
dx of HSV
culture virus, blood test, pcr