Benign Skin Lesions Flashcards
Identify this lesion
seborrheic keratosis
What is the most common benign cutaneous lesion?
seborrheic keratosis
Characteristics of a seborrheic keratosis
- smooth, verrucous, stuck-on appearance
- arise from epidermis
- milia like cysts on the surface
- can vary in color and have irregular borders
Identify these two similar lesions
left: seborrheic keratosis
right: malignant melanoma
What is the treatment for seborrheic keratosis
- watchful waiting
- cryotherapy, currettage, shave biopsy
Characteristics of dermatosis papulosa nigra
- similar to SKs
- multiple brown/black dome shaped papules
Identify this lesion
dermatosis papulosa nigra
What is the treatment for dermatosis papulosa nigra
- monitor
- Refer to derm for: curettage, cryotherapy
Identify this lesion
actinic keratosis
characteristics of actinic keratoses
- rough scaly patch develops from years of sun exposure
- can become SCC
treatment for AKs
- biopsy if uncertain diagnosis
- cryotherapy, curettage
- imiquod or fluorouracil
- sun protection
Identify these lesions
solar lentigines (singular: solar lentigo)
characteristics of solar lentigines
- aka liver spots
- small sharply circumscribed pigmented macule
- hyperplasia of the epidermis causing increased pigmentation of basal layer
treatment for solar lentigines
refer to derm for laser or chemical peels
What makes freckles unique to solar lentigines
Freckles
- appear during childhood
- darken with sun exposure
- fade with less sun
- genetic
characteristics of cutaneous horns
- hard keratin projection
- occur in sun exposed areas
- can be benign or pre-malignant
Identify this lesion
cutaneous horn
Treatment for cutaneous horns
biopsy due to a concern for SCC at the base of the lesion
What is the common name for acrochordons
skin tags
Acrochordons characteristics
- skin colored pedunculated papules ranging in size from tiny to 1cm
- fleshy texture
- common in areas of friction
Treatment for acrochordons
- snip excision (will bleed!)
- cryotherapy
Identify these lesions
acrochordons
Identify this lesion
Dermatofibroma
characteristics of a dermatofibroma
- firm pink to brown papules that dimple when squeezed
- inflammatory rxn to bug bite/trauma
treatment for dermatofibroma
- monitor
- biopsy: excision/shave/punch
characteristics of a hypertrophic scar
- confined to wound area
- occurs in first 4 weeks after procedure
- flattens over time
characteristics of a keloid scar
- painful
- extends outside of wound area
- occur later than a hypertrophic scar
- dont regress over time
Treatment for hypertrophic and keloid scars
Refer to derm for
- interalesional injections
- surgical
- cryotherapy
- laser treatment
Identify this lesion
keratoacanthoma
characteristics of a keratoacanthoma
- benign epithelial tumor
- well defined pink papule/nodule that develops umbilicated keratinous core
- considered a variant of SCC so treated as SCC
- grow rapidly over a few weeks
treatment for keratoacanthomas
surgical excision
What is this lesion
pyogenic granuloma
characteristics of a pyogenic granuloma
- vesicular lesion that develops rapidly
- painless
- can bleed easily
- can look like melanoma
treatment for pyogenic granuloma
Refer to derm for
- surgical
- shave
- curettage
- excision
Which of these is melanoma
left: melanoma
right: pyogenic granuloma
characteristics of an epidermal cyst
- firm, elevated, dermal lesion
- smooth round mobile
- narrow punctum/black dot
Identify these lesions
epidermal cysts
Treatment for epidermal cysts
refer for excision if larger and bothersome
Identify this lesion
Pilar cyst (type of epidermal cyst)
- no punctum
characteristics of a lipoma
- benign subQ tumor
- soft, round, mobile, superficial to muscle layer
- fat cells clumped together in capsule/fibrous framework
treatment for lipoma
refer for excision (derm or gen surg)
Identify this lesion
lipoma
Identify these lesions
sebaceous gland hyperplasia
characteristics of sebaceous gland hyperplasia
- small benign tumors enlarged sebaceous glands
- well defined yellow papules
- waxy, central umbilication
treatment for sebaceous gland hyperplasia
- electrocautery
- shave excision if concerned for BCC
- pulse dye laser
- cryotherapy
- topicals
- accutane
Identify these lesions
syringomas/syringomata
characteristics of syringomas
- small sweat duct tumors
- no malignancy potential
- flat topped, skin colored papules
- refer to derm for electrodessication, snip excision, curettage
Identify these lesions
Milia (milium)
what are the 3 types of angiomas
- cherry
- spider
- venous lake
Identify this lesion
cherry angioma
Identify this lesion
spider angioma (blanches with pressure)
Identify this lesion
venous lake angioma (blanches with pressure)
