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Dermatology > Naming Lesions > Flashcards

Naming Lesions Flashcards

1
Q

what is the name of a flat lesion under 1 cm in diameter?

A

macule

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2
Q

what is the name of a flat lesion over 1cm in diameter?

A

patch

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3
Q

what is the name of a raised lesion under 0.5cm in diameter?

A

papule

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4
Q

what is the name of a raised lesion over 0.5cm in diameter?

A

nodule

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5
Q

what is the name of a flat lesion with a raised edge over 1cm in diameter?

A

plaque

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6
Q

what is the name of an erythematous compressible dermal swelling?

A

wheal

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7
Q

compare a macular rash, a papular rash and a maculopapular rash?

A

macular rash is flat
papular rash is raised
maculopapular has flat and raised components

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8
Q

what is the name of a fluid filled lesion under 0.5cm in diameter?

A

vesicle

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9
Q

what is the name of a fluid filled lesion over 0.5cm in diameter?

A

bulla

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10
Q

what is the name of a nodule (raised lesion >0.5cm) containing semi-solid material?

A

cyst

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11
Q

what is the name of a raised lesion containing pus?

A

pustule

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12
Q

what is scale?

A

accumulates fragments of keratin layer

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13
Q

what is crust?

A

dried exudate

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14
Q

what is the name of a thickened area of skin with increased skin markings?

A

lichenified

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15
Q

what type of tissue makes up a scar?

A

fibrous tissue

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16
Q

what is the name of a superficial break in the epidermis?

A

erosion

17
Q

what is the name of a break in the dermis?

A

ulcer

18
Q

compare an erosion to an ulcer?

A 
erosion = break in epidermis
ulcer = break in dermis
19
Q

what is the name for linear splits in epidermis?

A

fissures

20
Q

what is the name of loss of epidermis (+/- dermis) but with intact surface?

A

atrophy

21
Q

what is the name of a small red or purple spot caused by bleeding into the skin?

A

petechiae

22
Q

what is the name of a rash of purple spots on the skin caused by internal bleeding into the skin?

A

purpura

23
Q

will petechiae blanche?

A

no

24
Q

will purpura blanche?

A

no

25
Q

what is erythema caused by?

A

vascular dilation

26
Q

does erythema blanche?

A

yes

27
Q

what is the main reason for hypopigmentation?

A

lack of melanin

28
Q

what are the 3 main reasons for hyperpigmentation?

A

increased melanin
haemosiderin deposits
chemical staining

Dermatology (4 decks)

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