Pigmented and Benign Skin Lesions Flashcards
What is seborrhoeic keratosis
Benign epidermal skin lesion seen in older people
Cause of seborrhoeic keratosis
Unknown mostly
?chronic UV exposure
Presentation of seborrhoeic keratosis
“stuck-on” appearance
large variation in colour from flesh-light brown-black
+/- keratotic plugs on surface
Tx of seborrhoeic keratosis
Reassurance
Options for removal - curettage, cryosurgery, shave biopsy
What is dermatosis pupulosa nigra
a variant of seborrhoeic keratosis that sometimes develops in black people or women
Presentation of dermatosis pupulosa nigra
multiple small dark brown soft papules on face, neck, chest
What is a keratocanthoma
Dome-shaped erythematous lesion that develops over a period of days
Presentatin of a keratocanthoma
Very fast growing
dome -shaped erythematous lesion with central pit of keratin
necrotising and sloughs off
Mx of keratocanthoma
Can spontaneously fall off after a few days
or
Curettage and cautery
What is a pyogenic granuloma
A friable overgrowth of a granulation site at sites of minor trauma
Tx of pyogenic granuloma
Curettage and cautery
