CM: Making a Derm Dx Flashcards Preview

Block 11 - Multisystems > CM: Making a Derm Dx > Flashcards

Flashcards in CM: Making a Derm Dx Deck (25):
1

What is a non-glabrous vs. a glabrous distribution?

non-glabrous = hair-bearing
glabrous = non-hair-bearing

2

What is the name of the distribution where skin folds on itself?

intertriginous

3

What is a periungual distribution?

around the fingernails

4

What are classic examples of grouped distributions?

herpetiform - random grouping
zosteriform - grouping in dermatomes

5

What are the different discriptors of a circular distribution?

annular = complete ring
archiform = incomplete ring
polycyclic = multiple rings - suggests subacute cutaneous lupus

6

non-palpable change in skin color with distinct borders (usually 1 cm

macule
patch

7

palpable solid lesion 1 cm in diameter

papule
nodule

8

flat topped elevation of skin surface covering large area, wider than it is high

plaque

9

fluid-containing superficial thin walled cavity 1 cm in diameter

vesicle
bulla

10

What is the difference between an erosion and an ulcer?

erosions - loss of epidermis only - suggests blistering
ulcer - loss of epidermis and dermis

11

pus containing, superficial thin walled cavity

pustule

12

What diagnosis do target lesions suggest?

erythema multiforme

13

What diagnoses do arciform lesions suggest?

granuloma annulare
leprosy
cutaneous T-cell lymphoma

14

What are secondary skin lesions?

excoriation, crust (dried exudates: serous, purulent, hemorrhagic), cyst, scar, lichenification (exaggerated skin markings), abscess, atrophy

15

What does a violaceous color suggest?

connective tissue disease

16

What signs indicate pathology involving the EPIDERMIS?

scale (psoriasiform, eczematous, ichthyotic)
increase/decrease in brown, grey or black pigmentation
usually NO erythema

17

What signs indicate pathology involving the DERMIS?

edema, red or violaceous pigment
if blanches = erythema (intravascular pathology)
if doesn't blanch = purpura (extravasation)
telangiectasias
blue, green or yellow pigmentation

18

What signs indicate pathology involving the SUBCUTIS?

poorly demarcated border
fixation to underlying tissue

19

If you have papules and plaques, with scale, what is it called?

papulo-squamous (dermatitis, psoriasis, lichen planus, subacute cutaneous lupus, sec syphilis, etc)

20

What is erythrodermic?

erythema and scale over most or all of body surface area (dermatitis, erythrodermic psoriasis, etc)

21

What is ichthyosiform?

fish-like scale on skin

22

If you have vesicles and bullae on skin what is it called?

vesico-bullous (herpes, EM, impetigo, pemphigus)

23

What is it called if you see blisters with papules, plaques, ulcers, and erosions?

vesiculo-bullous

24

What is it called if you have discrete, scarred papules or plaques?

sclerotic (may be atrophic)

25

What is it called if you have papules, nodules, and/or plaques with ulceration within?

nodulo-ulcerative