Benign Skin lesions Flashcards
Presentation of dermatofibromas
F > M
Usually on lower legs
Asymptomatic (sometimes itchy/ tender)
3 features of dermatofibromas
Freely moving
Firm-to-hard nodules
0.5-1.0 cm diameter
Tx for dermatofibromas
Reassure
Remove with elliptical excision/ punch biopsy
2 features of haemangiomas
Red/ purple papules/ plaques with normal epithelial surface
Compression causes partial emptying + colour becomes less prominent
7 subtypes of haemangioma
Capillary naevus Port-wine stain Vin-rose patch Venous-lake angioma Cavernous haemangioma Cherry haemangioma Telangiectasia
3 features of capillary naevi
Salmon pink
Infants
Facial lesions often fade
3 features of port-wine stains
Endothelial lined lesion
Contains blood vessels
Does not regress with age
2 features of Vin-rose patches
Pale pink
Appears as birthmark
3 features of Venous-lake angiomas
Dark blue papules
Sun-exposed areas esp. in elderly
M > F, Often >65
2 features of Cavernous haemangiomas
AKA. Strawberry naevi
Often regress by age 1
4 features of Cherry haemangiomas
AKA. Campbell de Morgan spots
Abdomen + Chest
Red + slightly elevated
DONT fade with pressure
3 features of Telangiectasia
permanent dilatations of groups of capillaries/ venules.
Inherited or associated with atopy, sun damage, CTD, raised oestrogen or venous HTN
Fill from edge
Tx of haemangiomas
Reassurance
Excision if cosmetic concern or suspicious
Aetiology of seborrhoeic keratoses
Skin ageing
5 features of seborrhoeic keratoses
Flat/ raised papule/plaque mm-cm's diameter Skin coloured, yellow, grey, brown, black or mixed Smooth, waxy or warty surface Solitary or grouped in certain areas
Characteristic description of seborrhoeic keratoses
“Stuck on”
Common sites of seborrhoeic keratoses
Torso + face
Sx of seborrhoeic keratoses
Often asymptomatic
Itchy/ inflamed
Ix for seborrhoeic keratoses
Dermoscopy; milia like cysts, fissures, comedy-like openings
Biopsy if suspicious
Tx for seborrhoeic keratoses
Reassurance
Betametasone- Itch
Curettage/ cautery- if unsightly
Cryotherapy- if unsightly
4 features of epidermoid cysts
Firm, fleshy/ yellowish papule/ nodule fixed to skin surface but typically mobile over deeper layers
Diameter 1–3 cm
A central punctum
Foul-smelling cheesy debris can be expressed from central punctum.
Sites of epidermoid cysts
Often central trunk (chest + shoulders) + face
Can occur almost anywhere
Common on scrotum + vulva.
Solitary or multiple
Sx of epidermoid cysts
Often asymptomatic
Rupture may cause swelling, redness, + tenderness
Tx for epidermoid cyst
Reassurance
Excision if unsightly
Incision + drainage if infected
