Ch. 11: Disorders & Diseases of the Skin Flashcards Preview

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Flashcards in Ch. 11: Disorders & Diseases of the Skin Deck (40)
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1

Define: Dermatology

The branch of medical science that studies and treats the skin and its disorders and diseases.

2

What is a Dermatologist?

A physician who treats disorders and diseases of the skin.

3

What are Lesions?

Structural changes in the tissues caused by damage or injury.

4

What are Primary Lesions?

Are characterized by flat, nonpalpable changes in the skin color such as Macule or patches, or an elevation formed by fluid in a cavity, such as vesicles, bullae, or pustules.

5

Bulla

Primary Lesion

* A large blister containing watery fluid.

6

Cyst

Primary Lesion

* A closed, abnormally developed sac containing fluid, infection, or other matter, above or below the skin.

7

Macule

Primary Lesion

* A flat spot or discoloration on the skin, such as a freckle or red spot, left after a pimple has healed. Neither raised nor sunken.

8

What are the 3 types of Lesions?

Primary, Secondary, and Tertiary.

9

Nodules

Primary Lesion

* These are often referred to as tumors, but they are smaller bumps caused by conditions such as scar tissue, fatty deposits, or infection.

10

Papule

Primary Lesion

* a small elevation on the skin that contains no fluid, but may develop into a pustule.
* are less than half an inch (1.25 centimeters) in diameters
* may have a varied appearance in color and are either rounded, smooth, or rough.

11

Pustule

Primary Lesion

* an inflamed papule with a white or yellow center containing pus, a fluid consisting of white blood cells, bacteria, & other debris.
* a small pus-containing blister that may or may not be caused by an infection.

12

Tubercle

Primary Lesion

* an abnormal rounded, solid lump; larger than a papule.

13

Tumor

Primary Lesion

* a large nodule; an abnormal cell mass resulting from excessive cell multiplication, varying in size, shape, & color.

14

Vesicle

Primary Lesion

* a small blister sac containing clear fluid.

15

Wheal

Primary Lesion

* an itchy, swollen lesion caused by a blow, insect bite, skin allergy reaction, or stings.

16

What are Secondary Lesions?

Skin damage, developed in the later stages of disease, that change the structure of tissue or organs.

17

Crust

Secondary Lesion

* dead cells formed over a wound or blemish while it is healing, resulting in an accumulation of sebum and pus, sometimes mixed with epidermal material.

18

Excoriation

Secondary Lesion

* a skin sore or abrasion produced by scratching or scraping.

19

Acne Exocriee

Secondary Lesion

* a disorder where clients purposefully scrape off acne lesions, causing scarring & discoloration.

20

Fissure

Secondary Lesion

* a crack in the skin that may penetrate into the dermis.

21

Keloid

Secondary Lesion

* a thick scar resulting from excessive growth of fibrous tissue.
* usually found in those that are genetically predisposed to them and may occur following an injury or surgery.

22

Scale

Secondary Lesion

* excessive shedding of dead skin cells; flaky skin cells; any thin plate of epidermal flakes, dry or oily.

23

Scar

Secondary Lesion

* discolored, slightly raised mark on the skin formed after an injury or lesion of the skin has healed.
* the tissue hardens to heal the injury. Thick, elevated scars are hypertrophic.

24

Ulcer

Secondary Lesion

* an open lesion on the skin or mucous membrane of the body, accompanied by pus & loss of depth.
* a deep erosion or depression in the skin, normally due to infection or cancer.

25

Acne

Sebaceous Gland Disorder

* a chronic inflammatory skin disorder of the sebaceous glands characterized by comedones & blemishes.
* common acne os known as acne simplex, or acne vulgaris.

26

Asteatosis

Sebaceous Gland Disorder

* Dry, scaly skin from sebum deficiency.
* can be due to aging, internal disorders, alkalies of harsh soaps, or cold exposure.

27

Comedo or Comedones

What is the difference between an open and closed comedo?

Sebaceous Gland Disorder

* A noninflamed buildup of cells, sebum, & other debris inside follicles.

*

28

Furuncle

Sebaceous Gland Disorder

* also known as a boil. A subcutaneous abscess filled with pus.
* Furuncles are caused by bacteria in glands or hair follicles.

29

Carbuncles

Sebaceous Gland Disorder

* groups of boils

30

Milia

Sebaceous Gland Disorder

* these epidermal cysts are small, firm, white papules.
* whitish, pearl-like masses of sebum and dead cells under the skin with no visible opening.
* common in dry skin types.
* may form after skin trauma, such as laser resurfacing or chronic exposure to UV radiation.
* usually found around eyes, cheeks, and forehead.
* can be treated in a salon or day spa; must be lanced, or opened to be extracted.