Dermatology Flashcards
1
Q
A
Plaque
- solid, plataeu-like
- scaly
- larger ( > 0.5cm)
2
Q
A
Burrow
- wavy, threadlike tunnel excavated by parasite
3
Q
A
Papule
- solid, elevated (palpable)
- less than 0.5cm (small)
4
Q
What general term can you use to describe this shape?
A
Nummular
- coin shaped
- uniform morphology
5
Q
A
Talengiectasia
- persistent dilatations of small capilaries
- non-pulsitile
- “spider veins”
6
Q
A
Calcinosis
- deposits of calcium in dermis
- whittish nodules or plaques
7
Q
A
Striae
- “stretch marks”
8
Q
A
Crust
- “scab”
- hardened deposits of bodily fluid on surface of skin
- yellow-brown (serous)
- yellow green (purulent exudate)
- reddish black (hemorrhagic secretion)
9
Q
A
Ulcer
- epidermis and dermis have been destroyed
- look for undermined edges (ulcer might be under that skin)
- look for rolled over edges –> won’t heal (need excision)
10
Q
A
Wheal
- evanescent (disappears within 12-48hrs) swelling of skin
- hives
11
Q
What term can you use to describe this feature?
A
Target
- target-like
- > 3 distinctive zones
12
Q
A
Cyst
- Fibrous inner capsule/sac
- contains fluid
- have to remove entirety of the the fibrous capsule of the cyst or it will recur
13
Q
A
Nodule
- solid, round, palpable
- larger ( > 0.5 cm)
14
Q
A
Vesicle/Bulla
- vesicle - clear fluid filled, small
- bulla - clear fluid filled, larger
15
Q
A
Papule
16
Q
What term can you use to describe this feature?
A
Whorled
- marble cake
17
Q
What general term can you use to describe this shape?
A
Polycyclic
- coalescing circles, rings or incomplete rings
18
Q
A
Sinus
- tract connecting deep suppurative cavities
- have to stick an object/probe in there to see how far it goes & where it goes
19
Q
A
Abscess
- localized accumulation of purulent materal deep to dermis
- pus not visible
- pink, erthematous, warm, tender, fluctuant nodule
- Tx: incise, drain, & pack it [antibiotics]
20
Q
A
Excoriation
- surface excavations of epidermis that result from scratching
21
Q
A
Macule
- flat (non-palpable)
- well-defined (usually)
- less than 1.0 cm in diameter (small)
22
Q
A
Scale
- Flat plate, or flake in stratum corneum
- dead superficial epidermal cells
23
Q
A
Erythema
- pink to red coloring of skin due to dilatation
- blanching - turns color [white] with pressure
24
Q
What term can you use to describe this feature?
A
Serpiginous
- serpentine or snake-like
25
Pustule
* small
* circumscribed skin papules containing purulent material
26
Macule
27
Plaque
28
Patch
* flat area (non-palpable)
* larger ( \> 1.0cm)
29
Keratoderma
* accumulation of scale in palms or soles
* yellowish thickening of skin
* acute case: can be sign of underlying disease (SSC, breast cancer, Hodgkin's, and leukemia)
30
Purpura
* reddish-purple lesions
* **non-blanching**
* petachiae - purpura \< 1 cm
31
What general term can you use to describe this shape?
Annular
* ring shaped
* raised, scaly, differing color
32
Fissure
* deep skin spit extending into dermis
* common in diabetics
* palms and soles were elasticity can decrease
33
Atrophy
* decreased skin thickeness due to skin thinning
* glossy, transparent, paper thin and wrinkled
34
Horn
* hyperkeratotics conical mass of cornified cells
* could be a squamous cell carcinoma (always excise and send to path)
35
What term can you use to describe the feature in A and B?
A. Group/Clustered
B. Scattered
36
What general term can you use to describe this shape?
Arcuate
* arc-shaped
37
Erosion
38
Lichenification
* reactive thickening of epidermis
* **accentuated markings**
* **resemble tree bark**
39
What general term can you use to describe this shape?
Linear
