Derm HX/PE/DX/Therapy Introduction Flashcards Preview

Dermatology > Derm HX/PE/DX/Therapy Introduction > Flashcards

Flashcards in Derm HX/PE/DX/Therapy Introduction Deck (51):
1

What are the three key factors that can be used to DX a skin condition?

        1.    The degree of pruritus

        2.    The distribution of the pruritus

        3.    The nature and distribution of any primary eruption.

2

Primary skin lesions

        Macule

        Papule

        Nodule

        Plaque

        Tumor

        Pustule

        Wheal

        Vesicle

        Bulla

3

secondary skin lesions 

        Scale

        Crust

        Scar

        Ulcer

        Excoriation

        Lichenification

        Hyperpigmentation

        Hyperkeratosis

        Epidermal collarette

4

Large vesicle; an intraepidermal or subepidermal accumulation of serous fluid

bulla

5

Accumulation of keratin and dried sebum in a hair follicle

comedones (comedo)

6

Dried exudate for secretion ± epithelial or bacterial debris

crust

7

                 Inflammation of the skin.

 

    Abnormal condition or disease of the skin

Dermatitis* 

 

Dermatosis*

8

Epidermis (name the layers)

Outermost, nonvascular layer of the skin.

Made up from outward-in of 5 layers: 1) Stratum corneum, 2) S. lucidum, 3) S. granulosum, 4) S. spinosum, 5) S. basale.

9

Redness produced by capillary congestion

erythema 

10

Superficial erosion or ulcer; usually implies scratch­ing or abrasion

excoriation 

11

Inflammation of hair follicles and associated adnexae

folliculitis 

12

Thickening of the stratum corneum due to an increased number of keratinized cells. Maybe from increased production or decreased loss. Orthokeratosis is a form wherein in the nucleus is lost in normal fashion (vs. parakeratosis).

Hyperkeratosis 

13

Cell of the epidermis

keratinocyte 

14

Thickening of skin with exaggeration of normal markings. Consists of acanthosis, hyperkeratosis and dermal thickening.

Lichenification 

15

Circumscribed, flat change in skin color. May be pale, hyper­pigmented or erythematous.

macule

16

A large papule; a circum­scribed lesion raised above the level of the epidermis. Often extends into dermis.

nodule

17

Circumscribed elevation of skin less than 1 cm in diameter.

papule 

18

Raised flat‑topped lesion

plaque

19

Circumscribed epidermal or dermal accumulation of purulent  exudate.

pustule

20

Purulent dermatitis

pyoderma

21

Flake of abnormal or compacted epithelial cells.

scale

22

A functional disturbance of sebaceous glands or of lipid metabolism of the epidermis. Accompanied by abnormal keratinization

seborrhea

23

Layer of epi­dermis com­posed of flat­tened cells with pyk­notic nuclei and keratin gran­ules

s. granulosum 

24

Swelling or enlargement. Usually, but not always, neoplastic

tumor

25

Loss of substance on a cutaneous surface exposing inner layers or tissues. May imply full thickness loss of epidermis.

ulcer

26

A circumscribed elevation of epidermis caused by accumulation of clear fluid within or beneath the epidermis.

vesicle 

27

Sharply circumscribed skin elevation produced by edema of the superficial dermis.  This is commonly known as a hive.

wheal 

28

What are these stains most useful for evaluating:

 

Q image thumb

A image thumb
29

A macule that is >1cm= a ...

patch

30

Name the lesion?

Q image thumb

macule (aka target lesion)

31

Name the lesion?

Q image thumb

papule

32

Name the lesion?

Q image thumb

plaque

33

Name the lesion?

Q image thumb

a pustule 

34

DDX for follicular papular/pustule eruption

dermatophyte

bacteria

demodex 

35

DDX for non-follicular pustule/papule?

A image thumb
36

Name the lesion?

Caused by?

Q image thumb

vesicle

contact dermatitis & autoimmune skin dz

37

Name the lesion?

Causes?

Q image thumb

bulla

burns, contact dermatitis, drug rxn, autoimmune dz

38

Name the lesion?

Q image thumb

nodule

39

Name the lesion type?

Q image thumb

tumor

(may or may not be neoplastic)

40

Lesion type?

Test to make sure it is this type of lesion?

wheal (edema under skin)

Diascopy - swelling should go down and blanch (if erythematous) when you press on the lesion if it is d/t vascular fluid leakage

41

A dog presents with the following?

Primary or secondary lesion? If secondary, what was the primary lesion?

Name of lesion?

Q image thumb

Secondary- epidermal collarette 

Primary lesion was a pustule 

A image thumb
42

Name the lesion? 

Primary or secondary?

If secondary, what is the primary lesion?

Q image thumb

Secondary: scale

Primary:

large scales= pustule

small scales= dandruff 

43

lesion? 1 or 2?

Q image thumb

crust

seondary 

44

A lesion associated with hypopigmentation, alopecia, and/or a thinner dermis. 

Q image thumb

scar

45

Lesion? 1 or 2?

Q image thumb

ulcer; secondary

46

Lesions? 1 or 2?

Q image thumb

excoriations (implies scratching or abrasions)

47

Lesion? 1 or 2?

Q image thumb

lichenification; secondary 

48

Lesion? 1 or 2?

Q image thumb

hyperkeratosis

secondary 

49

Lesion? 1 or 2? 

What structure in the skin is most often affected and why do they loose pigment?

Q image thumb

depigmentation

basement membrane that contains melanocytes is attacked via an inflammatory or neoplastic process that affects the melanocytes  

50

Type of diagnostic test? 

What can be observed along the hair shaft?

Q image thumb

direct microscopic exam of hair 

arthrospores 

51

What is a cytology useful for?

identify secondary infections