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Derm > Pilosebaceous unit > Flashcards

Pilosebaceous unit Flashcards

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Dermatology Board Prep flashcards
1
Q

What are the 4 segments of the pilosebaceous unit?

A

keratinized follicular infundibulum
hair
sebacous gland
sebaceous duct

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2
Q

People who develop too much sebum have what pathology?

A

seborrheic dermatitis

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3
Q

What are some common features of Acne fulminans?

A

primarily occurs in men 13-16
characterized by abrupt eruption of nodular and suppurative acne with systemic manifestations
arthralgias, myalgias and HSM
lesions are inflamed and coalesce into painful and oozing friable plaques with hemorrhagic crusts

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4
Q

What is the occulusion triad?

A

acne conglobata, Hiradenitis suppurativa, and dissecting cellulitis (pilonidal cyst)

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5
Q

What are common features of acne mechanica?

A

result of mechanical and frictional obstruction of the pilosebaceous unit
often characterized by linear and geometric distribution

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6
Q

What are common features of Acne exoriee?

A

result of excoriation and manipulation

often associated with mental disorder

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7
Q

What drugs tend to cause drug-induced acne?

A

anabolic steroids, corticosteroids and lithium

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8
Q

What hormone tends to cause infantile acne?

A

DHEA

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9
Q

What are common retinoids?

A

tretinoin and adapalene

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10
Q

what do retinoids do?

A

normalizes follicular keratinization, expulsion of existing comedones and prevention of new lesions

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11
Q

What is BPO

A

a topical anti-inflammatory agent

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12
Q

Which of the oral antibiotics cause photosensitivity?

A

tetracycline, doxycycline, and isotretinoin

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13
Q

which of the oral antibiotics cause myalgias and arthraligias?

A

minocycline and isotretinoin

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14
Q

What is the treatment for grade 1 acne?

A

topical retinoids and BPO

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15
Q

What is the treatment for grade 2 acne?

A

topical retinoids, BPO and topical antibiotics

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16
Q

What is the treatment for grade 3 acne?

A

topical and systemic therapy

17
Q

what is the treatment for grade 4 acne?

A

systemic isotretinon

18
Q

What are the secondary diagnostic features of rosecea?

A

burning/stinging especially on malar cheeks, xerosis of central face, edema, ocular manifestations and rhiophyma

19
Q

What is the treatment for steroid rosacea?

A

topical calcinerhin inhibitors or systemic antibiotics

20
Q

What are some treatments for hyperhidrosis?

A

aluminum chloride
oral anti-cholingergics
botulinum toxin
surgical sympathectomy

Derm (9 decks)

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