Non-melanom skin cancer Flashcards Preview

Dermatology > Non-melanom skin cancer > Flashcards

Flashcards in Non-melanom skin cancer Deck (9)
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1

Leser-trelat sign

Sudden eruption of many seborrhoeic keratoses
(malignant acanthosis nigricans)

2

Type of cyst seen in seborrhoeic keratosis?

Horn cysts can be seen in seborrhoeic keratosis

3

Squamous cell carcinoma precursors

Bowens disease (red patches, more often females, especially legs)
Actinic keratosis (from sun)
Viral lesions (especially ano-genital skin)

4

Erythroplasia of Queryat - what is this and what is it associated with?

Penile Bowen's
Associated with HPV

5

Chronic lupus vulgaris can give rise to which type of cancer?

Squamous carcinoma of the skin

6

Commonest clinical setting of squamous carcinoma of the skin and other associations?

COMMONEST CLINICAL SETTING:
elderly, sun exposed sites (face, ears, dorsal hands)
UV implicated

OCCASIONALLY ARISES:
chronic leg ulcers e.g. stasis ulcers
sites of burns; sinuses e.g chronic osteomyelitis
chronic lupus vulgaris

RARE ASSOCIATIONS:
xeroderma pigmentosum; dystrophic variant epidermolysis bullosa

7

Specific sites of squamous cell carcinoma that have a poorer prognosis?

Ear, nose, scalp

8

Primary small cell neuroendocrine carcinoma of the skin

Merkel cell carcinoma

9

Mycosis fungoides

Cutaneous T-cell lymphoma
Just looks like a big red rash tbh.. :(
Occurs in bathing suit area:
groin, lower trunk, buttocks, breast, axillae