4 - Derm - Non-melanoma skin cancers + Benign skin tumours - Benign lesions Flashcards Preview

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Flashcards in 4 - Derm - Non-melanoma skin cancers + Benign skin tumours - Benign lesions Deck (18):
1

8 types of benign lesions

dermatofibroma
neurofibroma
epidermoid cyst
pilar cyst
keratoacanthoma
seborrhoeic keratosis
viral wart
hemangiomas

2

3 types of hemangiomas

cherry angioma, pyogenic granuloma, strawberry naevus

3

dermatofibroma - appearance and texture, squuezed?

firm, elevated, pigmented nodule, if squeezed forms dimple - tethering to underlying tissue

4

dermatofibroma - more common in? maybe following? mgmt?

females>males
follow trauma, insect bite
excision if Sx/cosmetic

5

neurofibroma - occurs in what? appearance? mgmt?

in neurofibromatosis type 1
small button like nodules - maybe widespread
if large/painful - excision

6

neurofibroma - describe NF1

inherited
-neurofibromas
-cafe au lait
-freckles under armpits groin
-lisch nodules

7

Epidermoid cyst - why occur? appearance? where?

entry of epidermis into the dermis
cystic swelling, central punctum
face, neck, trunk

8

epidermoid cyst - contains? what may happen? mgmt?

'cheesy' keratin
may rupture causing inflam
may be excised

9

Pilar cyst - appearance? less prone to?

smooth cyst, no punctum, usually on scalp
less prone to rupture

10

keratoacanthoma - growth? may develop what? describe core?

rapidly growing
may have central necrosis and ulceration
solid filled with keratin

11

keratoacanthoma - occur where? mgmt?

sun exposed skin
should be excised to exclude SCC

12

seborrheic keratosis - appearance and texture? what is it?

brown/black/flesh-coloured, stuck on appearance, irregular surface and warty

benign overgrowth of basal cell layer

13

seborrheic keratosis - how many? treatment?

solitary/multiple
tx with cryo/curettage

14

Viral wart - caused by?
difference between common and plantar?

HPV
common - papules - hands and feet
plantar - verrucae - soles of feet

15

viral wart mgmt?

chemical Tx
cryotherapy
curettage and cautery

16

cherry angiomas - appearance? where?

red-purple-black papules
esp on trunk

17

pyogenic granuloma - how ? appearance? common in?

bl vess overgrowth, may be preceded by trauma
initially smooth raspberry appearance
young adults/pregnancy

18

strawberry naevus - usually when? where? mgmt?

usually shortly after birth
usually head or neck
90% resolve by 9
tx needed if obstructs feeding, vision etc

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