Skin Lesions Flashcards
1
Q
Macule
A
- flat, nonpalpable
- <1cm in diameter
2
Q
Patch
A
- flat, non-palpable
- >1cm
3
Q
Papule
A
- elevated, round
- <1cm in diameter
4
Q
Plaque
A
- elevated, circumscribed
- >1cm in diameter
5
Q
Nodule
A
- elevated, circumscribed
- large volume than papule often > 2cm
- involves the dermis
- greatest mass may be beneath the skin surface
6
Q
Vesicle
A
- elevated, circumscribed
- <1cm in diameter
- primarily filled with clear fluid, may become pustular
7
Q
Bulla
A
- elevated, circumscribed
- larger vesicle, >1cm
- filled with clear fluid
8
Q
Wheal
A
- aka hive
- firm, edematous plaque
- tend to be transient
9
Q
pustule
A
- elevated, circumscribed
- usually <1cm
- filled with purulent fluid
10
Q
Flat topped
A
- lichenoid
11
Q
A
12
Q
A
13
Q
Scale
A
- hyperkeratosis
*
14
Q
Excoriation
A
- exogenous injury to all or part of the epidermis
- secondary feature of pruritus
- due to scratching
15
Q
Atrophy
A
- epidermal atrophy: thinning of the epidermis, leading to wrinkling and a shiny appearance
- dermal atrophy: loss of dermal collagen and/or elastin leading to a depression
16
Q
Lichenification
A
- thickening of the epidermis and accentuation of the natural skin lines
i. e. acanthosis nigricans
17
Q
Fitzpatrick Scale of Skin Phototypes
A
- 1-6:
- 1: white
- 2: white
- 3: Beige
- 4: Brown
- 5: Dark Brown
- 6: Black
18
Q
What type of pruritus requires a full workup
A
- generalized unexplained pruritus
19
Q
Exanthem
A
- means “flower breaking out”
- used to describe a skin breakout that is due to internal disorder such as an infection or drug
- i.e. viral exanthem
20
Q
Morbiliform
A
- “measles-like”
- maculopapular that becomes confluent
21
Q
Purpura
A
- visible hemorrhage into the skin or mucus membranes
- these are non-blanchable
22
Q
Petechiae
A
- less than or equal to 3mm and macular
- small purpura
23
Q
Ecchymosis
A
- usually >1cm
- trauma in the history is typical
- a hematoma is when it is palpable
24
Q
Levido Reticularis
A
- blue or discolored network
- think of Mallory’s legs during cold soccer workouts
- pale with the blue and discolored network of lacy coloration
25
Q
Papulosquamous eruption
A
- well circumscribed papules, plaques with hyperkeratosis (scaling)
- often associated with:
- psoriasis
- pityriasis rosea
- lichen planus
- tinea corporis
- seborrheic dermatitis
