Dermatology Flashcards

1
Q

Preterm skin has increased permability due to decreased thickness of the ______ layer.

A

Epidermis

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2
Q

Increased elasticity in preterm skin is due to:

A

large decrease in collagen elastic fibers

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3
Q

A decrease in ______ increases preterm photosensitivity

A

melanosomes

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4
Q

Eccrine gland function normalizes after ______ of age

A

1-7 days

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5
Q

Sebaceous glands have a ______ in secretions in the preterm infant

A

decrease

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6
Q

Surface area to volume in the preterm infant is significantly _______ compared to term

A

increased

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7
Q

Erythema toxicum occurs in ______% of term infants

A

30-70%

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8
Q

E. toxicum typically presents at ____ of age

A

2-3 days to 2-3 weeks

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9
Q

Wright stain of e. toxicum has

A

numerous eosinophils

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10
Q

The skin type most commonly affected by neonatal pustular melanosis:

A

dark-skinned infants

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11
Q

Three stages of neonatal pustular melanosis

A

1— Birth- small, non-inflammatory pustules

2— Ruptured pustules with scale, hyperpigmented macules

3— Hyperpigmented macules for up to 3 months

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12
Q

Neonatal pustular melanosis wright staining shows

A

numerous neutrophils

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13
Q

Obstruction of sweat glands causes a rash called

A

miliaria

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14
Q

Miliaria occurs in _____ on the body

A

intertriginous, face, scalp, trunk

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15
Q

A rash of sweat obstruction with superficial thin-walled 1-2mm vesicles is ______

A

miliaria crystalline

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16
Q

A rash of sweat obstruction with small groups of red papules and pustules (“prickly heat”) is ____

A

miliaria rubra

17
Q

A rash of sweat obstruction with pustules on an erythematous base from localized inflammation is _____

A

miliaria pustulosa

18
Q

A rash of sweat obstruction with nonerythematous skin-colored pustules is ____

A

miliaria profunda

19
Q

Miliaria wright-staining shows _____

A

sparse squamous cells and lymphocytes

20
Q

Pearly nonerythematous yellow or white papules on the face are ____

A

milia

21
Q

Milia are caused by

A

small epidermal inclusion cysts (keratin and sebaceous material in follicles)

22
Q

Milia generally resolves by ______ of age

A

1-3 months

23
Q

Epstein’s pearls are _____ located on genitalia, areola or mouth

A

milia

24
Q

Neonatal acne affects ____ of newborn infants

A

20%

25
Q

Both neonatal and infantile acne is more common in _____ gender infants

A

male

26
Q

Neonatal acne is caused by _____

A

increased androgenic organ response

inflammatory Malassezie species colonization

27
Q

Neonatal acne occurs around ____ of age

A

3 weeks

28
Q

Presentation of neonatal acne is

A

inflammatory papules and pustules without comedones

face and scalp

29
Q

Presentation of infantile acne presents at ____ of age

A

3-4 months

30
Q

Presentation of infantile acne appears as ___

A

more severe neonatal acne

comedones, inflammatory papules and pustules, nodules

31
Q

Neonatal acne resolves by ____ of age

A

1 year of age, no long term risk for acne

32
Q

Infantile acne resolves by _______ of age

A

1-3 years

Increased risk of severe acne at puberty

33
Q

Severe infantile acne can be associated with:

A

congenital adrenal hyperplasia
gonadal/adrenal tumor
precocious puberty