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Course 2 - Dermatology > Morphology > Flashcards

Morphology Flashcards

1
Q

identify the morphology of this lesion

A

MACULE

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2
Q

examples of macules

A

freckles, flat moles, the rashes of rickettsial infections, rubella, measles

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3
Q

describe a macule

A

flat, circumscribed

<1cm in diameter

hypo or hyper pigmented

can be other colors (pink, red, violet)

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4
Q

identify the morphology of this lesion

A

patch

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5
Q

describe a patch

A

flat, circumscribed

>1cm in diameter

hypo or hyper pigmented

also other colors

a bigger macule

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6
Q

examples of a patch

A

tattoos, port-wine stains, cafe-au-lait spots

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7
Q

identify the morphology of this lesion

A

papule

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8
Q

describe a papule

A

elevated lesions

<1cm in diameter

palpable

thickening of epidermis and/or cells or deposits within dermis

may have secondary changes

distinguish from vesicle or pustule

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9
Q

what are examples of papules

A

nevi, warts, lichen planus, insect bites, seborrheic keratoses, actinic keratoses, some lesions of acne, and skin cancers

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10
Q

identify the morphology of this lesion

A

plaque

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11
Q

describe a plaque

A

elevated, circumscribed

>1 cm in diameter

elevation due to increased thickness of the epidermis and/or cells or deposits within the dermis

may have secondary changes (e.g. scale, crust)

bigger papule

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12
Q

what are examples of plaques?

A

Lesions of psoriasis and granuloma annulare

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13
Q

identify the morphology of this lesion

A

nodule

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14
Q

describe a nodule

A

elevated, circumscribed

larger volume than papule, often >2cm in diameter

involves the dermis, may extend to subcutis

greatest mass may be beneath the skin surface

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15
Q

what are some examples of nodules?

A

cysts, lipomas, and fibromas

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16
Q

identify the morphology of this lesion

A

vesicles

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17
Q

what are examples of vesicles?

A

herpes infections, acute allergic contact dermatitis

18
Q

describe a vesicle

A

elevated, circumscribed

<1cm in diameter

primarily filled with clear fluid

may become pustular, umbilicated or an erosion

19
Q

identify the morphology of this lesion

A

bulla

20
Q

describe a bulla

A

elevated, circumscribed

>1cm in diameter

filled with clear fluid

21
Q

what are some examples of bulla?

A

burns, bites, irritant contact dermatitis or allergic contact dermatitis, and drug reactions

22
Q

identify the morphology of this lesion

A

pustule

23
Q

describe a pustule

A

elevated, circumscrived

usually <1cm in diameter

filled primarily with purulent fluid

24
Q

describe the morphology of this lesion

A

crust

dried serum, blood or pus

25
Q

when is crusting often seen?

A

secondary skin changes from inflammatory or infectious skin diseases

26
Q

describe the morphology of this lesion

A

scale

27
Q

what 5 pruritic conditions present as macules/papules/plaques?

A

xerosis

atopic dermatitis

nummular dermatitis

seborrheic dermatitis

stasis dermatitis

28
Q

what 3 pruritic conditions present as vesicles/bullae?

A

varicella zoster

dermatitis herpetiformis

bullous pemphigold

29
Q

what pruritic condition present as wheals/hives?

A

urticaria

30
Q

what secondary skin change is this?

A

excoriation

31
Q

what secondary skin change is this?

A

loss of the epidermis and at least part of the dermis

infections, vasculitis etc.

32
Q

what secondary skin change is this?

A

fissure

33
Q

what secondary change is seen here?

A

erosion

34
Q

what secondary skin change is seen here?

A

atrophy

35
Q

what secondary skin change is seen here?

A

lichenification

36
Q

what distribution pattern is seen here?

A

annular

37
Q

what distribution pattern is seen here?

A

retiform

38
Q

what distribution pattern is seen here?

A

serpiginous

39
Q

what distribution pattern is seen here?

A

clustered

40
Q

what distribution pattern is seen here?

A

reticulated

41
Q

what distribution pattern is seen here?

A

linear

42
Q

what skin pattern is seen here?

A

Blaschko’s lines

Course 2 - Dermatology (11 decks)

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