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Dermatology > Vocabulary > Flashcards

Flashcards in Vocabulary Deck (36)
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1

astringent

chemical compound used to shrink or constrict tissue. ex: Calamine

2

burrows solution

astringent: aluminum acetate solution

3

Domeboro Solution

astringent: aluminum acetate solution

4

Annular

Circular

5

Bulla

Large fluid-filled blister greater than 1 cm in diameter.

6

Cyst

A papule or nodule that contains fluid or semi-fluid material

7

Crusting

Occurs when plasma exudes weep through an eroded epidermis and dries on the skin surface.
It is rough on the surface and is yellow or brown in color.

8

Desquamation

Latin  "to scrape the scales off a fish"
More formally called skin peeling - the shedding of the outermost layer of tissue.

9

Erosion

Loss of the surface (epidermis) of a skin lesion
It is a shallow moist or crusted lesion.

10

Eschar

Dark-colored adherent crust of dead tissue found on some ulcers.

11

Excoriation

Scratch mark or surface injury penetrating the dermis.
It may be linear or a picked scratch (prurigo – intensely itchy spots).
Excoriations may occur in the absence of a primary dermatosis.

12

Fissure

Thin crack within epidermis or epithelium
Due to excessive dryness

13

Fluctuant

Movable or compressible

14

Hyperkeratosis

Increase in the dead cells on the surface of the skin forming scales (stratum corneum).

15

Hyperpigmentation

Due to hypermelanosis that results in skin color that is darker than normal.

16

Hypopigmentation

Skin color that is paler than normal

17

Lentigo

Plural – Lentigines
Commonly referred to as “liver spots”

18

Lichenification

Caused by chronic rubbing, which results in palpably thickened skin with increased skin markings and a lichenoid scale.
Occurs in chronic atopic eczema and lichen simplex.

19

Macule

Small area of color change, often defined as less than 1.5 cm diameter. 
The surface is smooth and non-palpable.

20

Nikolsky sign

A specific skin finding in which the top layers of the skin slough off when slightly rubbed.
Use a pencil eraser placed on the skin and gently twist back and forth.
Test result is positive, a blister will form in the area, usually within minutes.

21

Nodule 

An enlargement of a papule in three dimensions (height, width, length).
It is a solid lesion more than 1 cm in diameter.

22

Patch

A patch refers to a large area of color change
Smooth surface.

23

Papule

Small palpable lesions.
Usually by definition less than 1 cm diameter.
They are raised above the skin surface, and may be solitary or multiple.

24

Petechiae

Petechiae are small red, purple or brown spots - a form of purpura.

25

Purpura

Bleeding into the skin.
This may be petechial or as ecchymosis.
Does not blanch with pressure (diascopy).

26

Plaque 

Palpable flat lesion usually greater than 1 cm diameter.
Most plaques are elevated, but a plaque can also be a thickened area without being visibly raised above the skin surface.
They may have well-defined or ill-defined borders. The name 'plaque' is derived from the French word for plate.

27

Polygonal

Skin lesion has a non-geometric shape.

28

Prurigo

A chronic skin disease having various causes, marked by the eruption of pale, dome-shaped papules that itch severely.

29

Pruritus

Intense itching

30

Pustule 

Collection of pus.
It is filled with neutrophils, and may be white, or yellow.
Not all are infectious.