Intro to Dermatology Terms Flashcards Preview

Skin/Musculoskeletal: Anatomy/Dissection > Intro to Dermatology Terms > Flashcards

Flashcards in Intro to Dermatology Terms Deck (28)
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1
Q

A flat, circumscribed region of skin with a different color or texture is called what?

what is it called if it’s larger than 1 cm?

A

macule

a patch

2
Q

What is a common example of a macule?

What is a common example of a patch?

A

freckles are macules

vitiligo has patches

3
Q

What do you call a palpable, circumscribed change in consistency of contour of the skin?

what if it’s larger than 1 cm?

what if it’s significantly larger than 1 cm?

A

papule

over 1cm = nodule

waaay over 1 cm = tumor

4
Q

What do you call a coalescence of papules?

A
5
Q

What do you call an encapsulated nodule filled with soft meterial?

A

a cyst

6
Q

What do you called a circumscribe, clear fluid-filled lesion like a blister?

what if it’s very large?

what if it’s filled with inflammatory cells?

A

a vesicle

a very large vesicle = bulla

with pus = pustule

7
Q

Describe what a wheal looks like.

A

It’s a palpable, circumscribed area of edema with central pallor and peripheral edema

they’re also called urticaria or hives

they usually disappear relatively quickly

8
Q

What do you call discoloration of the skin due to the presence of blood in the tissue, outside of blood vessels?

what if it’s a small punctate region of this?

A

purpura

petechiae

9
Q

What is purpura usually caused by?

A

vasculitis, or inflammation of the blood vessels

it won’t blanch when you push on it

10
Q

What do we call a plug within a hair follicle canal composed of keratin and sebum?

A

a comedo

think acne - white heads and black heads

11
Q

What do we call a white papule composed of whorls of keratinized epidermal cells beneath the skin surface - usually on the eyelids?

A

milium

12
Q

What is a burrow?

A

a horizontal tunnel in the stratum corneum which is produced by a parasite like scabies

13
Q

What is a scaly lesion characterized by?

A

exfolitaiton of surface keratin cells - like in psoriasis

14
Q

What is the adjective used when a lesion has very thick scales?

A

hyperkeratotic

15
Q

What does a crusted lesion have?

A

it will display dried exudate of fluid and/or cellular components on the skin surface

16
Q

What does an eroded lesion have?

A

it will show a superficial defect in the skin surface which won’t penetrate through the epidermis - like an abrasion

17
Q

What will an ulcerated lesion have?

A

a skin defect that DOES penetrate through the epidermis

18
Q

What will an excoriated lesion have? what’s it from?

A

An excoriated lesion will be eroded or ulcerated in a linear fashion, due to scratching

19
Q

What will a fissured lesion have?

A

a horizontal split in the skin

20
Q

What does lichenified mean?

A

it’s an area of skin that shows thickening with accentuation of the normal skin markings - usually a sign of chronicity associated with scraching or rubbing

21
Q

What does verrucous mean?

A

it’s an area of skin that is characterized by velvety or roughened wart-like changes

22
Q

What does telengiectatic mean?

A

it’s when an area of skin shows dilated small arterioles or capillaries coursing parallel to the skin surface - this is permanent

23
Q

What do you call it when the skin is emaciated or thinned, as in striae?

A

atrophic

24
Q

What do we call epidermal hyperplasia?

A

acanthosis

25
Q

What do we call separation of keratinocytes due to loss of intercellular attachments - desmosomes?

A

acanhtolysis

26
Q

What is a linear, non-nested proliferation of melanocytes along the basal layer called?

A

lentiginous

27
Q

What do we call it when there is a retention of nuclei within the keratinocytes of the stratum corneum?

A

parakeratosis

28
Q
A