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Integumentary Sys > Module 1 MiniModule 1: Introduction and Clinical Manifestations of Cutaneous Disease: Skin Lesions > Flashcards

Module 1 MiniModule 1: Introduction and Clinical Manifestations of Cutaneous Disease: Skin Lesions Flashcards

1
Q

Which lesions are primary dermatologic lesions?

A
  • Macule/patch
  • Papule/plaque
  • Pustule
  • Vesicle/bulla
  • Wheal/angioedema
  • Nodule or mass
  • Cyst
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2
Q

Which lesions are secondary dermatologic lesions?

A
  • Excoriation
  • Epidermal collarette
  • Erosion/ulcer
  • Scar
  • Fissure
  • Lichenification
  • Callus
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3
Q

Lesion Description:
The initial eruption that develops spontaneously as a direct reflection of the underlying disease

A

Primary Lesion

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4
Q

Lesion Description:
- Evolve from primary lesion
- induced by patient
- External factors

A

Secondary Lesion

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5
Q

List the lesions that may be primary or secondary:

A
  • Alopecia
  • Scale
  • Crust
  • Follicular casts
  • Comedo
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6
Q
  • Circumscribed non-palpable spot (NOT RAISED)
  • Hyperpigmentation (Melanin)
  • Depigmentation
  • Erythema - dilated vessels
  • Hemorrhage
    - Petechia: 1-3 mm
    - Purpura: 3-10 mm
    - Echymoses: > 10 mm
    What is this describing?
A

Macule/Patch

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7
Q

What is the size of a Macule?

A

equal or less than 1 cm

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8
Q

What is the size of a Patch?

A

greater than 1 cm

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9
Q

Definition:
Is a test for blanchability performed by applying pressure with a finger or glass slide and observing color changes

A

Diascopy
(if it blanches it has erythema)

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10
Q
  • Small palpable solid elevation of the skin
  • less or equal to 1 cm
    - Epidermal (hyperplasia)
    - Dermal (edema, cells)
    What is this describing?
A

Papule

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11
Q
  • greater than 1 cm
  • Larger, FLAT-topped elevation
  • Formed by the extension or coalition of papules
    What is this describing?
A

Plaque

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12
Q
  • Small circumscribed elevation of the epidermis that is filled with pus (inflammatory cells)
  • Follicular/interfollicular
    What is this describing?
A

Pustule

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13
Q
  • Sharpley demarcated elevation of the epidermis filled with clear fluid or blood
    What is this describing?
A
  • Vesicle: less or equal to 1 cm
  • Bulla: greater to 1 cm
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14
Q
  • Sharply circumscribed, raised lesion (epidermis/dermis) consisting of edema
  • Usually disappears within minutes/hours
  • Blanch on diascopy
    What is this describing?
A

Wheals (urticaria, hives)

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15
Q
  • Involves deep dermis + subcutis -> large diffuse edema
    What is this describing?
A

Angioedema

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16
Q
  • Circumscribed solid elevation > 1 cm
  • Extends into the dermis, SQ
  • May drain
  • Mass (>2 cm) larger than nodule
    What is this describing?
A

Nodule or Mass

17
Q
  • Smooth, round, circumscribed fluctuant to solid mass with hollow lumen containing fluid to semi-solid material
  • Epithelial-lined
    - Follicular
    - Glandular
    What is this describing?
A

Cyst

18
Q

What is the most common reason we see alopecia?

A

Self-trauma pruritis

19
Q

What is a reason, other than self-trauma pruritis, to have alopecia?

A

Folliculitis
(secondary lesion)

20
Q

What can be a primary cause of alopecia?

A

Hair Cycle Arrest

21
Q

Dermatologic Lesion description:
An accumulation of loose fragments of the cornified layer of the skin

A

Scale

22
Q

Dermatologic Lesion description:
Dried pus or scale adherent to the skin surface

A

Crust

23
Q

Dermatologic Lesion description:
Accumulation of keratin and follicular material that adheres to the hair shaft extending above the surface of the follicular ostia

A

Follicular Cast

24
Q

Dermatologic Lesion description:
- Dilated hair follicle filled with cornified cells and sebaceous material
- “Blackhead”

A

Comedo

25
Q

Dermatologic Lesion description:
- Special type of scale arranged in a circular rim of loose keratin
- Remnants of the roof of a vesicle, bulla, pustule, or papule

A

Epidermal Collarette

26
Q

Dermatologic Lesion description:
- Shallow epidermal defect
- Does not penetrate the basement membrane zone
- Heals without scarring

A

Erosion

27
Q

Dermatologic Lesion description:
- Defect penetrates the BMZ exposing the dermis
- Heals with scarring

A

Ulcer

28
Q

Dermatologic Lesion description:
- Area of fibrous tissue that has replaced damaged dermis or SQ
- Skin is contracted
- Depressed lesion
- Non-pigmented

A

Scar

29
Q

Dermatologic Lesion description:
- Linear cleavage into the epidermis, or through the epidermis into the dermis
- Disease or Injury

A

Fissure

30
Q

Dermatologic Lesion description:
- Thickening and hardening of the skin characterized by an exaggeration of the superficial skin markings
- May be hyperpigmented
- Friction /trauma/prurituss

A

Lichenification

31
Q

Dermatologic Lesion description:
- Localized, hyperplastic skin reaction
- Secondary to trauma, pressure, or friction
- Common in dogs

A

Callus

Integumentary Sys (6 decks)

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