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MSCT > Clinical Skin Morphology > Flashcards

Clinical Skin Morphology Flashcards

1
Q

Types of skin biopsies

A

Shave/snip, punch, exisional

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2
Q

Steps of the dermatological exam

A

What is the primary lesion (color/size), what are the secondary changes, configuration/shape, body distribution

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3
Q

Dermatologic description

A

Distribution, configuration, color/size primary lesion with +/- secondary change

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4
Q

Primary lesions

A

Macule, papule, vesicle, pustule, patch, plaque, nodule, tumor/mass, bulla

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5
Q

Macule

A

Flat and small, can’t feel it, “spot”

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6
Q

Patch

A

Flat, larger than macules, can’t feel it

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7
Q

Papule

A

Small, raised lesions, caused by a proliferation of cells in epidermis or superficial dermis

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8
Q

Plaque

A

Bigger, can feel them, cast a shadow with side lighting, caused by proliferation of cells in epidermis or superficial dermis

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9
Q

Nodule

A

Usually smaller, deep, palpable, caused by proliferation of cells into the mid-deep dermis or fat, “small knot”

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10
Q

Vesicle

A

Small, fluid-filled palpable lesion

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11
Q

Bulla

A

Large, fluid-filled palpable lesion

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12
Q

Pustule

A

Palpable bump filled with white fluid (pus)

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13
Q

Secondary changes

A

Scale, crust, excoriation, erosion, ulcer, fissure, lichenification, atrophy, scar

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14
Q

Scale

A

Accumulated skin (stratum corneum)

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15
Q

Crust

A

Dried exudate (blood, serum, pus)

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16
Q

Excoriation

A

Traumatized due to scratching

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17
Q

Erosion

A

Depression with loss of epidermis (superficial), may occur after vesicle forms and top peels off, may weep fluid and become crusted, does not scar

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18
Q

Ulcer

A

Depression with loss of epidermis and dermis (deeper), “sore”, usually heal with scarring

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19
Q

Fissure

A

Linear cleavage

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20
Q

Lichenification

A

Thickening, accentuated skin lines

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21
Q

Atrophy

A

Depression, thinning and wrinkling

22
Q

Scar

A

Permanent fibrotic change

23
Q

Vascular/vasculitic indicators

A

Will not blanch with pressure (diascopy)

24
Q

Petechiae/petechial

A

Acute to subacute leakage of capillaries within skin, generally pinpoint to small

25
Q

Purport/pupuric

A

Acute to subacute leakage of capillaries or small-larger vessels within skin, usually larger, may be palpable

26
Q

Ecchymotic

A

Subacute to chronic hemorrhage within skin, usually larger

27
Q

Distribution definition

A

Location(s) on the body

28
Q

Configuration definition

A

How the lesions are arranged or related to each other

29
Q

Configuration examples

A

Solitary, discrete, annular (ring-like), confluent, clustered/grouped, linear, reticulated

30
Q

Solitary

A

A single lesion

31
Q

Discrete

A

The borders are well defined

32
Q

Annular

A

Pathology is on the outside, the inside is normal or relatively normal

33
Q

Confluent

A

Multiple lesions coming together

34
Q

Clustered

A

Multiple discrete lesions in a similar area

35
Q

Linear

A

Forming straight lines

36
Q

Reticulated

A

Having the appearance of a net

37
Q

Distribution terms

A

Generalized, symmetric, unilateral, dermatomal, lines of blaschko

38
Q

Generalized

A

Involves the entire body

39
Q

Symmetric

A

Affects both sides the same way

40
Q

Unilateral

A

Only one side is affected

41
Q

Dermatomal

A

The lesions are specific to a dermatome

42
Q

Lines of Blaschko

A

Lesions give a fountain like appearance

43
Q

Distribution patterns

A

Acral, truncal, extensor, flexor, follicular, koebnerized, photodistributed, pressure/dependency

44
Q

Acral

A

Involves the finger tips, nose, toes, ears

45
Q

Truncal

A

Involves the parts of the body associated with the trunk

46
Q

Extensor

A

Affects the part of the flat parts of the body (not where the folds are)

47
Q

Flexor

A

Affects the parts of the body where the folds are

48
Q

Follicular

A

Affects the skin where there are follicles (hairy parts)

49
Q

Koebnerized

A

The lesion spreads to an area of injury or trauma on the skin

50
Q

Photodistributed

A

The lesion affects parts of the body exposed to sunlight

51
Q

Pressure/dependency

A

Stasis or vasculitis related

MSCT (28 decks)

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