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Dermatology > Benign Skin Lesions > Flashcards

Benign Skin Lesions Flashcards

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Dermatology Board Prep flashcards
1
Q

Identify this lesion

A

seborrheic keratosis

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2
Q

What is the most common benign cutaneous lesion?

A

seborrheic keratosis

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3
Q

Characteristics of a seborrheic keratosis

A
  • smooth, verrucous, stuck-on appearance
  • arise from epidermis
  • milia like cysts on the surface
  • can vary in color and have irregular borders
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4
Q

Identify these two similar lesions

A

left: seborrheic keratosis
right: malignant melanoma

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5
Q

What is the treatment for seborrheic keratosis

A
  • watchful waiting
  • cryotherapy, currettage, shave biopsy
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6
Q

Characteristics of dermatosis papulosa nigra

A
  • similar to SKs
  • multiple brown/black dome shaped papules
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7
Q

Identify this lesion

A

dermatosis papulosa nigra

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8
Q

What is the treatment for dermatosis papulosa nigra

A
  • monitor
  • Refer to derm for: curettage, cryotherapy
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9
Q

Identify this lesion

A

actinic keratosis

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10
Q

characteristics of actinic keratoses

A
  • rough scaly patch develops from years of sun exposure
  • can become SCC
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11
Q

treatment for AKs

A
  • biopsy if uncertain diagnosis
  • cryotherapy, curettage
  • imiquod or fluorouracil
  • sun protection
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12
Q

Identify these lesions

A

solar lentigines (singular: solar lentigo)

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13
Q

characteristics of solar lentigines

A
  • aka liver spots
  • small sharply circumscribed pigmented macule
  • hyperplasia of the epidermis causing increased pigmentation of basal layer
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14
Q

treatment for solar lentigines

A

refer to derm for laser or chemical peels

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15
Q

What makes freckles unique to solar lentigines

A

Freckles
- appear during childhood
- darken with sun exposure
- fade with less sun
- genetic

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16
Q

characteristics of cutaneous horns

A
  • hard keratin projection
  • occur in sun exposed areas
  • can be benign or pre-malignant
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17
Q

Identify this lesion

A

cutaneous horn

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18
Q

Treatment for cutaneous horns

A

biopsy due to a concern for SCC at the base of the lesion

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19
Q

What is the common name for acrochordons

A

skin tags

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20
Q

Acrochordons characteristics

A
  • skin colored pedunculated papules ranging in size from tiny to 1cm
  • fleshy texture
  • common in areas of friction
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21
Q

Treatment for acrochordons

A
  • snip excision (will bleed!)
  • cryotherapy
22
Q

Identify these lesions

A

acrochordons

23
Q

Identify this lesion

A

Dermatofibroma

24
Q

characteristics of a dermatofibroma

A
  • firm pink to brown papules that dimple when squeezed
  • inflammatory rxn to bug bite/trauma
25
Q

treatment for dermatofibroma

A
  • monitor
  • biopsy: excision/shave/punch
26
Q

characteristics of a hypertrophic scar

A
  • confined to wound area
  • occurs in first 4 weeks after procedure
  • flattens over time
27
Q

characteristics of a keloid scar

A
  • painful
  • extends outside of wound area
  • occur later than a hypertrophic scar
  • dont regress over time
28
Q

Treatment for hypertrophic and keloid scars

A

Refer to derm for
- interalesional injections
- surgical
- cryotherapy
- laser treatment

29
Q

Identify this lesion

A

keratoacanthoma

30
Q

characteristics of a keratoacanthoma

A
  • 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
31
Q

treatment for keratoacanthomas

A

surgical excision

32
Q

What is this lesion

A

pyogenic granuloma

33
Q

characteristics of a pyogenic granuloma

A
  • vesicular lesion that develops rapidly
  • painless
  • can bleed easily
  • can look like melanoma
34
Q

treatment for pyogenic granuloma

A

Refer to derm for
- surgical
- shave
- curettage
- excision

35
Q

Which of these is melanoma

A

left: melanoma
right: pyogenic granuloma

36
Q

characteristics of an epidermal cyst

A
  • firm, elevated, dermal lesion
  • smooth round mobile
  • narrow punctum/black dot
37
Q

Identify these lesions

A

epidermal cysts

38
Q

Treatment for epidermal cysts

A

refer for excision if larger and bothersome

39
Q

Identify this lesion

A

Pilar cyst (type of epidermal cyst)
- no punctum

40
Q

characteristics of a lipoma

A
  • benign subQ tumor
  • soft, round, mobile, superficial to muscle layer
  • fat cells clumped together in capsule/fibrous framework
41
Q

treatment for lipoma

A

refer for excision (derm or gen surg)

42
Q

Identify this lesion

A

lipoma

43
Q

Identify these lesions

A

sebaceous gland hyperplasia

44
Q

characteristics of sebaceous gland hyperplasia

A
  • small benign tumors enlarged sebaceous glands
  • well defined yellow papules
  • waxy, central umbilication
45
Q

treatment for sebaceous gland hyperplasia

A
  • electrocautery
  • shave excision if concerned for BCC
  • pulse dye laser
  • cryotherapy
  • topicals
  • accutane
46
Q

Identify these lesions

A

syringomas/syringomata

47
Q

characteristics of syringomas

A
  • small sweat duct tumors
  • no malignancy potential
  • flat topped, skin colored papules
  • refer to derm for electrodessication, snip excision, curettage
48
Q

Identify these lesions

A

Milia (milium)

49
Q

what are the 3 types of angiomas

A
  • cherry
  • spider
  • venous lake
50
Q

Identify this lesion

A

cherry angioma

51
Q

Identify this lesion

A

spider angioma (blanches with pressure)

52
Q

Identify this lesion

A

venous lake angioma (blanches with pressure)

Dermatology (17 decks)

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