Lecture 3: Dermatology I

Question 1

what this

Answer 1

demodex

Question 2

label 1-10

Answer 2

1. Vertical canal
2. Auricular cartilage
3. Horizontal canal
4. Tympanic membrane
5. Middle ear cavity
6. Tympanic bulla
7. Auditory tube
8. Cochlea
9. Auditory ossicles
10. Temporalis muscle

Question 3

what this

Answer 3

otoscope

Question 4

tympanic membrane identify A-C

Answer 4

A. Pars flaccida
B. Pars tensa
C. Stria mellearis

Question 5

stria mallearis attachment of the __ to __

Answer 5

malleus to tympanic membrane

Question 6

stria mallearis is origin of __

Answer 6

epithelial migration

Question 7

what are primary lesions

Answer 7

occur spontaneously as a result of underlying disease

Question 8

What are secondary lesions

Answer 8

occur as a result of “evolution” of primary lesions and as a result of external forces (trauma)

Question 9

what are our primary lesions

Answer 9

1. Macule or patch
2. Papule or plaque
3. Pustule
4. Vesicle or bulla
5. Wheal
6. Nodule
7. Tumor or cyst

Question 10

what are our secondary lesions

Answer 10

1. Epidermal collarette
2. Scar
3. Excoriation
4. Erosion or ulcer
5. Fissure
6. Lichenification
7. Callus

Question 11

what are some lesions that can be primary or secondary

Answer 11

alopecia, scale, crust, follicular casts, comedomes, pigmentary changes

Question 12

what these

Answer 12

Papules- small elevation of skin

Question 13

how big are papules

Answer 13

<1cm

Question 14

what are papules associated with

Answer 14

allergies, pyoderma

Question 15

what this

Answer 15

plaque

Question 16

how big are plaques

Answer 16

> 1cm, flat topped elevation of skin

Question 17

what this

Answer 17

ulcerative plaque

Question 18

What this

Answer 18

pustules

Question 19

what are pustules associated with

Answer 19

pyoderma or pemphigus foliaceous

Question 20

What this

Answer 20

nodule- solid elevation of tissue >1cm

Question 21

what do nodules occur from

Answer 21

infiltrates of inflammatory or neoplastic cells

Question 22

what this and what is this condition in cats called

Answer 22

macules- circumscribed change in color that is flat

Feline lentigo complex

Question 23

what is difference between macule and patch

Answer 23

patch >1cm

Question 24

what is a vesicle

Answer 24

small, superficial, circumscribe elevation of skin that contains serous fluid

Question 25

what is a bulla

Answer 25

vesicle >0.5cm

Question 26

what these

Answer 26

wheals/hives

Question 27

What these

Answer 27

comedones/blackhead- dilated hair follicle devoid of hair and plugged with keratinous debris

Question 28

What these

Answer 28

follicular casts- accumulation of keratinous debris around hair shaft

Question 29

what these

Answer 29

scales/dandruff- accumulation of loose cornified fragments of epidermis

Question 30

what These

Answer 30

crusts- dried exudate on skin surface, either serum, blood or pus or combination

Question 31

what this

Answer 31

Erosion- break in epidermis that does not penetrate basement membrane

Question 32

what is excoriation

Answer 32

erosion or ulceration caused by scratching, biting or rubbing

Question 33

what this

Answer 33

Ulcer- break in epidermis that penetrates basement membrane

Question 34

What this

Answer 34

scar- area of fibrous tissue replacing damaged skin

Question 35

what this

Answer 35

Lichenification- accentuation of skin markings giving an elephant skin appearance, thickening of epidermis

Question 36

What is leukotrichia

Answer 36

loss of hair pigment

Question 37

what pigment change

Answer 37

Leukotrichia

Question 38

describe this pigment change

Answer 38

hyerpigmentation

Question 39

what this

Answer 39

epidermal collarette- circular lesion with circular rim of scale and or a peeling edge

Question 40

epidermal collarette are footprints of __ or __ lesion

Answer 40

vesicular or pustular

Question 41

what are epidermal collarette common in

Answer 41

pyoderma

Question 42

dog elbow- what this

Answer 42

callus- thickened or hardened part of skin or soft tissue, especially area subjected to friction

Question 43

describe lesions

Answer 43

crusts- yellow/serous Alopecia Erythema Hypopigmentation

Question 44

describe lesions

Answer 44

erythema, scales, depigmentation

Question 45

describe lesions

Answer 45

erosion, alopecia, crusts

Question 46

describe lesions

Answer 46

pustules, papules—> plaques

Question 47

describe lesions

Answer 47

scales, alopecia, erythema, erosions, crusts