common derm Flashcards

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1
Q

acne

A

causes: hormones, environment, meds, irritants

dx - clinical. comedones (white and blackheads) must be present

closed comedones - noninflam (white head)

open comodone - black head

tx - topical retinoid (non-inflam)!!! benzoyl peroxide!!! then topical antibiotics (inflam), oral abx (systemic), isotretinoin (cystic), anti-androgens, spironolactone

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2
Q

rosacea

A

inflammatory condition of skin in predisposed individuals

papules and pustules on cheeks and chin and forehead

dx - clinical

tx - ID triggers, metronidazole, sunscreen, NO steroids. systemic - PO abx (minocycline or doxy)

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3
Q

seborrheic dermatitis

A

erythematous scaling patches in nasolabial folds, scalp, face, eyelids, eyebrows

tx - ketoconazole, topical steroids if ineffective, therapeutic shampoo

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4
Q

actinic keratosis

A

sun-induced damage to epidermal cells

precursor to squamous cell carcinoma

s/s - skin colored macules with a dry, rough scale on an erythematous base

tx - cryotherapy w liquid nitrogen, shave biopsy for suspected SCC

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5
Q

basal cell carcinoma

A

most common cutaneous malignancy

RF - sun exposure, radiation

dx - skin biopsy

s/s - pink pearly papule with overlying telangiectasia, slight central depression, mild ulceration, may be pigmented

tx - removal (burning, scraping, Mohs’), Aldara for superficial, sun precautions, follow up

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6
Q

squamous cell carcinoma

A

may develop from actinic keratosis
increased risk in immunosuppressed

s/s - pink/red, scaling patch/plaque, overlying crusts

tx - mohs for face, excision, sun precautions, follow up

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7
Q

malignant melanoma

A

70% new lesion in adults

most common cancer in young white females

ABC rule

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8
Q

ABCD rule of malignant melanoma

A

Asymmetry of border
Border irregularly
Color variation
Diameter >6 mm
Evolution or change in time (size, shape, color)

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9
Q

spider hemangiomas

A

network of dilated capillaries
blanch on palpation

tx - not necessary, electrocautery if desired

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10
Q

cherry angiomas

A

bright-red to purple domed vascular lesions

tx - not necessary, electrocautery if desired

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11
Q

cherry angiomas

A

bright-red to purple domed vascular lesions

tx - not necessary

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12
Q

dermatofibroma

A

firm, dermal papules

flesh colored to pink or brown

asymptomatic but may be tender

tx - punch excision for chronic irritation

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13
Q

molluscum contagious

A

pox virus caused irritation

can be STI or viral infection

tx - watch and wait, cryotherapy

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14
Q

keratosis pilaris

A

autosomal dominant

upper arms irritation, benign

s/s - perifolicular papules

tx - topical retinoids, cream

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15
Q

acrochordon

A

skin tag

s/s - soft, skin-colored brown pedunculate growths

tx - excision or cryotherapy

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16
Q

pilar cyst

A

firm, mobile, subcutaneous cyst originating from the hair root

common on scalp

inherited

tx - excision if tender or if cosmetically desired