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Derm 2020 > Exanthems > Flashcards

Exanthems Flashcards

1
Q

Hand foot and mouth disease can be caused by coxsackie A, B , echovirus

A

True

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2
Q

HFMD most common in spring and winter

A

False - summer and autumn

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3
Q

HFMD coxsackie A16 and A10 are major causes of outbreaks

A

True

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4
Q

Coxsackie A6 can frequently affect adults in summer

A

False - winter

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5
Q

Complications of HFMD

A 
Onychomadesis
Delayed acral desquamation
Cardiopulmonary and neurologic complications 
Encephalitis 
Meningitis 
Death
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6
Q

Measles is caused by which virus

A

Paramyxoviridae family - RNA virus

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7
Q

Classic prodrome of measles

A 
Cough
Coryzal symp
Conjunctivitis
Koplik spots
Cephalocaudal spread of exanthem
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8
Q

Treatment for measles

A 
Supportive cares
No specific viral therapy
High dose vitamin A 200,000U if >12 mo
100 000 if 6-11mo
50 000 if <6 mo
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9
Q

Complications of measles

A

Otitis
Pneumonia
Encephalitis
Myocarditis

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10
Q

Which enanthem occurs with Rubella

A

Forscheimer spots

—> erythematous petechial macules may be present on the soft palate

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11
Q

T/F Rubella is caused by togaviridiae virus

A

True

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12
Q

What does congenital rubella syndrome comprise?

A 
Cataracts, 
Deafness
Congenital heart defects (PDA, VSD)
Blueberry muffin syndrome
CNS abnormalities (microcephalic, developmental delay)
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13
Q

During the viraemic period of parvovirus B19, reticulocytopaenia occurs for 7-10 days

A

True

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14
Q

What is the risk of foetal loss (due to hydrops fetalis) with parvovirus B19

A

2-6%

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15
Q

Roseola infantum appears as a generalised rash on the trunk as the fever breaks

A

True

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16
Q

Features of Roseola

A

-

  • oedematous eyelids
  • rose pink macules and papules over trunk, neck , proximal extremities and sometimes face
  • halo/clearing around individual lesions
  • bulging anterior fontanelle in babies
  • ENANTHEM: Nagayama spots (red papules on the soft palate and uvula)
17
Q

UNILATERAL LATEROTHORACIC EXANTHEM due to:

A

Spiroplasma, parvovirus B19, EBV noted in individual cases

18
Q

Unilateral laterothoracic exanthem most commonly affects the inguinal area

A

False, axilla

19
Q

Unilateral laterothoracic exanthem is usually morbilliform or eczematous in nature

A

True

20
Q

Gianotti crosti begins very gradually with polymorphous pink red , oedematous papules

A

False - abrupt with monomorphous lesions

21
Q

Gianotti Crosti syndrome is asymmetrically distributed over the face , buttocks, extensor surfaces of the extremities

A

False - symmetrical

22
Q

Gianotti Crosti can sometimes be limited to the face

A

True

Derm 2020 (59 decks)

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