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NPLEX - Dermatology & Minor Surgery Questions and Correct Answers | Latest Update

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Seborrheic Keratoses -:- (seborrheic warts/basal cell papillomas) Usually seen in the elderly: head, neck, dorsum of hands, forearms, trunk Flat-topped, "stuck-on" appearance, usually deeply pigmented, granular surface Benign, but can resemble MM Rx: cryo, curettage/cautery, shave, or el...

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  • September 19, 2024
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  • 2024/2025
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  • NPLEX
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2024 /2025 | © copyright | This work may not be copied for profit gain Excel!




NPLEX - Dermatology & Minor Surgery
Questions and Correct Answers | Latest
Update
Seborrheic Keratoses


✓ -:- (seborrheic warts/basal cell papillomas)

✓ Usually seen in the elderly: head, neck, dorsum of hands, forearms, trunk

✓ Flat-topped, "stuck-on" appearance, usually deeply pigmented, granular

surface

✓ Benign, but can resemble MM




Rx: cryo, curettage/cautery, shave, or elliptical excision




Skin Tag(Acrochordons)/Papillomata


✓ -:- Small, fleshy, pedunculated lesions; often in neck/axillae - attached by

stalk




Rx: cryo, forceps/cautery,*"lift and snip"* by pressure/cautery/cayenne, tie procedure




Actinic Keratoses (solar keratoses, senile keratoses)

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,2024 /2025 | © copyright | This work may not be copied for profit gain Excel!



✓ -:- Red, scaly, "sandpapery" patches of dysplastic epithelium, found on

light-exposed skin; can

become pigmented (yellow sharp scales/ pigmented)


Most common precancerous lesion of the skin (10-15% transform into SCC)




REFERRAL for re-examination




Rx: can leave alone, *Cryosurgery*, *hyfrecation*, ED&C, *shave excision*, topical

chemotherapy (5% flurouracil cream)




Keratoacanthoma


✓ -:- Characterized by rapid growth, on light-exposed skin (smooth dome-

shaped red papule to 1-2 cm tumor)

Round with rolled edges and central keratin plug; often inflamed


Usually spontaneously resolves ~ 6 months


Often difficult to distinguish from bcc in appearance; base may contain SCC (ddx SCC)




Rx: refer, or curette/cautery, *excision w/biopsy*


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, 2024 /2025 | © copyright | This work may not be copied for profit gain Excel!




Verruca (warts)


✓ -:- Benign epidermal neoplasms caused by HPV - Smooth, flesh-colored

papule - evolve into dome-shaped gray-brown hyperkeratotic growth with

black dots on surface




Common; usually on hands, plantar surfaces, genitals (condyloma acuminata)




Avoid surgical removal, especially on face (will often resolve spontaneously)




Rx: try medical measures first (duct tape, *salicylic acid*, podophyllin, thuja, tea tree oil);

then


*cryo* (hyfrecation, curette/cautery, excision)




Molluscum Contagiosum


✓ -:- Caused by a virus; small, pearly hard papules w/umbilicated center -

fleshed coloured




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