Dx skin Dz

Question 1

Macule

Answer 1

Circumscribed, flat discoloration

Question 2

Epidermis fx is?

Answer 2

Barrier to pathogens
Water regulation (sensible losses)

Question 3

Secondary lesions are

Answer 3

the evolutionary component of a developing skin Dz

Created 2nd to another process (itch/inf)

Question 4

Primary lesion is?

Answer 4

Basic lesion that 1st forms and allows for the initial orientation/DDx to begin.

Question 5

Dilated hair follicle comedone?

Answer 5

Blackhead

Question 6

Comedone

Answer 6

sebaceous/keratinous material plugged in hair follicle opening.
orifice may be dilated (blackhead)
or narrowed (whitehead)

Question 7

Burrow,

Answer 7

narrow, elevated, tortuous channel produced by a parasite

Question 8

Ulcer

Answer 8

focal loss of epidermis and dermis; heals with scarring

Question 9

Lichenification,

Answer 9

area of thickened epidermis induced by scratching; accentuated skin lines look like washboard

Question 10

Bulla

Answer 10

circumscribed collection of free fluid >0.5 cm in diameter

Question 11

Cyst,

Answer 11

circumscribed lesion with a wall and a lumen containing either fluid or solid material

Question 12

Plaque

Answer 12

circumscribed, elevated, superficial, solid lesion >0.5 cm in diameter
-Confluence of papules

Question 13

Most skin disease have what?

Answer 13

Preferred areas of involvement

Question 14

Wheal (hive)

Answer 14

firm edematous plaque resulting from infiltration of the dermis with fluid; transient; lasting only few hours

Question 15

Crust

Answer 15

collection of dried serum and cellular debris (scab)

Question 16

What is the key to accurate decription/interpretation of cutaneous Dz?

Answer 16

ID primary lesion

Question 17

Petechiae,

Answer 17

circumscribed deposit of blood < 0.5 cm in diameter

Question 18

Atrophy

Answer 18

depression of skin resulting from epidermis/dermis thinning

Question 19

FOur main TXT categories are?

Answer 19

Topical
Systemic
Surgical
Phototherapy

Question 20

Key to performing PE

Answer 20

Determine primary vs 2ndary and special
Distribution pattern/extent w/
Lens and good lighting

Question 21

If a Dx is not established then what?

Answer 21

No meds Rx (Do not try to guess and refer when it doesnt work)

Question 22

Secondary lesion examples

Answer 22

Atrophy
Crust
Erosion
FIssure
Scales 
Scar
Ulcer

Question 23

Telangiectasia,

Answer 23

Dilated superficial blood vessels

Question 24

When inspecting include what?

Answer 24

Mucous membranes
Genitals/Anal region
Hair/Nails
Peripheral lymph nodes

Question 25

Purpura

Answer 25

circumscribed deposit of blood >0.5 cm in diameter

Question 26

What type of specialty is dermatology?

Answer 26

Morphologically oriented specialty | -Must interpret what is seen

Question 27

Primary lesion examples?

Answer 27

``` Macule > Patch Papule > Plaque Nodule > Tumor Pustule Vesicle Bulla Wheal (hive) ```

Question 28

Tumor

Answer 28

large nodule

Question 29

Dermatology methodical approach to care/TXT

Answer 29

HX PE (Distribution, Primary/2ndary and special lesions) DDx Tests

Question 30

Nodule

Answer 30

circumscribed, elevated, solid lesion >0.5 cm in diameter

Question 31

Patch

Answer 31

macule that is >1 cm in size as a patch

Question 32

Pustule

Answer 32

circumscribed collection of leukocytes and free fluid that varies in size

Question 33

Excoriation

Answer 33

erosion caused by scratching; often linear

Question 34

Epidermis varies in thickness by?

Answer 34

0.3mm (eye lids) - 3mm (back)

Question 35

Special lesion examples

Answer 35

``` Burrow, Comedone, Cyst, Excoriation, Lichenification, Milia, Petechiae, Purpura Telangiectasia, ```

Question 36

Fissure

Answer 36

linear loss of epidermis and dermis with sharply defined, nearly vertical walls

Question 37

Scar

Answer 37

abnormal formation of connective tissue implying dermal damage

Question 38

Milia,

Answer 38

small, superficial keratin cyst with no visible opening

Question 39

Scales

Answer 39

Excess dead epidermal cells produced by ABNL keratinization and shedding

Question 40

Narrowed hair follicle comedone?

Answer 40

Whitehead

Question 41

Vesicle

Answer 41

circumscribed collection of free fluid <0.5 cm in diameter

Question 42

Erosion

Answer 42

focal loss of epidermis not penetrating into dermoepidermal jx therefore healing w/out scarring

Question 43

Papule

Answer 43

Elevated solid lesion <0.5 cm in diameter in various colors.