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Derm Exam 1 > SG 1: Benign Skin Lesions > Flashcards

SG 1: Benign Skin Lesions Flashcards

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Dermatology Board Prep flashcards
1
Q

a pigmented and stuck-on lesion is most likely

A
  • Seborrheic keratosis
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2
Q

Seborrheic keratosis is common after what age

A
  • age 30
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3
Q

Seborrheic keratosis arises on all body surfaces except

A
  • palms and soles of foot
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4
Q

Do Seborrheic keratosis individual lesions go away?

A
  • no
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5
Q

Seborrheic keratosis versus nevi and when they appear

A
  • nevi appear in first 3 decades of life
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6
Q

a new nevus at age 50 should raise suspicion of

A
  • melanoma
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7
Q

treatment of SKs when bothersome

A
  • generally nothing - curetted, frozen, electrodessicated
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8
Q

when the SK is excoriated, what do you see?

A
  • a pink base
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9
Q

what are dermatosis papulosa nigra

A
  • tiny SKs
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10
Q

why do we use caution with freezing SKs on dark skin

A
  • can cause dyspigmentation
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11
Q

what are stucco keratosis in what population

A
  • small SKs located on the dorsal feet and ankles - older fair-skinned individuals
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12
Q

what are acrochordons

A
  • skin tags
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13
Q

what is a fleshy papules arising in the axillae, neck, groin, and eyelid often pedunculated

A
  • skin tag
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14
Q

factors for getting skin tags

A
  • genetics - obesity - friction
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15
Q

skin tags can also be a marker for

A
  • insulin resistance
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16
Q

treatment for skin tags

A
  • elective removal - snipping - liquid nitrogen - electrodessication - may also fall off on their own
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17
Q

what is a red mole generally

A
  • cherry angioma
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18
Q

at what age do cherry angiomas start to form

A
  • age 30
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19
Q

cherry angioma highest concentration where

A
  • the trunk
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20
Q

cherry angioma do they go away? are they harmful?

A
  • do not go away - are harmless
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21
Q

when cherry angiomas are traumatized and bleed or thrombose they may mimic _______

A
  • melanoma
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22
Q

new growths on the leg that are often nicked by shaving. are firm and feel like scar tissue with rim of pigmentation

A
  • dermatofibroma
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23
Q

dermatofibromas are common where on the body

A
  • the leg
24
Q

dermatofibroma may be induced by ________

A
  • trauma
25
Q

what benign spindle cell dermal proliferation looks like a wad of scar tissue under the microscope

A
  • dermatofibroma
26
Q

what is the dimple sign of dermatofibroma

A
  • pinch on either side of dermatofibroma and it will “dimple down”
27
Q

what are solar lentigines are they cancerous or precancerous

A
  • sun spots or age spots - no
28
Q

solar lentigines reflect a history of _____ and can identify patients at risk for

A
  • UV exposure - skin cancer
29
Q

treatment for solar lentigines

A
  • no treatment required - cosmetic treatments for those who want it
30
Q

first step for solar lentigines

A
  • sun protection
31
Q

numerous skin-colored or slightly yellow umbilicate papules can be diagnosed as

A
  • sebaceous hyperplasia
32
Q

sebaceous hyperplasia are yellow due to

A
  • sebaceous gland overgrowth
33
Q

sebaceous hyperplasia umbilication due to

A
  • growth around central hair follicle
34
Q

sebaceous hyperplasia - do you have to remove

A
  • not medically required - just cosmetic
35
Q

how to distinguish sebaceous hyperplasia versus basal cell carcinoma

A
  • seborrheic hyperplasia - yellow, umbilication, multiple papules - BCC - solitary, friable, pearly translucent with telangiectasia
36
Q

an itchy lesion that will arise after trauma can be

A
  • keloid
37
Q

what is an overgrowth of scar tissue beyond the original scar site

A
  • keloid
38
Q

keloid most common in what race

A
  • african american
39
Q

keloid most common on what part of the body

A
  • upper trunk - earlobes
40
Q

treatment of keloid

A
  • intralesional steroid injection
41
Q

do we excise keloids? why?

A
  • no - keloid may recur and larger
42
Q

what is a mobile subcutaneous nodule often with overlying punctum that may discharge foul smelling cheese white material

A
  • epidermal inclusion cyst
43
Q

epidermal inclusion cysts arise from

A
  • hair follicles
44
Q

treatment of epidermal inclusion cyst

A
  • incision and drainage
45
Q

epidermal inclusion cyst versus bacterial abscess

A
  • epidermal inclusion cysts do not require oral antibiotics upon rupture - they are sterile
46
Q

what is a tiny epidermoid cyst that often occurs in the face

A
  • milia
47
Q

milia in newborn versus milia in adult

A
  • go away in newborns - persist in adults
48
Q

what are firm, mobile subcutaneous nodules that lack punctum that may enlarge over months to years and do not discharge any material

A
  • pilar cyst
49
Q

pilar cyst compared to epidermal inclusion cyst

A
  • pilar cyst less likely to rupture or get inflammed
50
Q

location of pilar cyst

A
  • nearly always on the scalp
51
Q

treatment of pilar cyst

A
  • elective excision
52
Q

diagnosis of mobile, soft, subcutaneous nodule that lacks any overlying skin change

A
  • lipoma
53
Q

treatment of lipoma

A
  • elective surgery
54
Q

what are lipomas

A
  • collection of fat under the skin
55
Q

genetics of lipomas

A
  • autosomal dominant
56
Q

lipomas begin at what age

A
  • early adulthood

Derm Exam 1 (23 decks)

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