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Dermatology > Dermatopathology > Flashcards

Dermatopathology Flashcards

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Dermatology Board Prep flashcards
1
Q

Merkels cells

A

Function as mechanoreceptors

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2
Q

Melanocytes

A

Pigment synthesizing cells

SUpply keratinocytes with melanin

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3
Q

Langerhans cells

A

Scattered in suprabasal layer of epidermis
Immunogenic cells that recognize foreign antigens.
Bind antigen, send it to node

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4
Q

Dermis

A

Mostly composed of collagen

Immune cells, nerves, vessels

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5
Q

Eccrine (merocrine) glands

A

Sweat glands
Located over entire body
Open directly to skin surface

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6
Q

Apocrine glands

A

Sweat glands
Open through a HAIR FOLLICLE
Less numerous
Secrete more of an oily substance

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7
Q

Sebaceous Glands

A

Secrete sebum, an oily substance

Lubricates hair and skin

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8
Q

Eponychium

A

Nail bed

Nail plate lies on top

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9
Q

Primary lesions

A

Arise from previously normal skin

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10
Q

Secondary lesion

A

Created by another process such as scratching or infxn

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11
Q

Circumscribed flat lesion <1cm

Freckle

A

Macule

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12
Q

Circumscribed flat lesion >1 cm

A

Patch

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13
Q

Elevated solid lesion with variable color <.5 cm

A

Papule

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14
Q

Raised, flat-topped superficial lesion where diameter is greater than the thickness. >.5 cm

A

Plaque

Often the product of a coalescence of papules

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15
Q

Elevated lesion with a rounded surface.

.5 - 1-2 cm

A

Nodule

Generally deeper and firmer than papule

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16
Q

Large nodule, >2 cm

A

Tumor

17
Q

Somewhat irregular, transient swelling due to local skin edema.

A

Wheal

18
Q

Fluid-filled lesion up to 1cm

A

Vesicle

19
Q

Serous-filled lesion >1cm

A

Bulla

20
Q

Circumscribed lesion filled w/ pus

A

Pustule

21
Q

Abnormal stratum corneum due to accumulation of or increased shedding of keratinocytes

A

Scales

22
Q

Dried serum, pus or blood

A

Crusts

23
Q

Partial loss of the epidermis

A

Erosion

24
Q

Full thickness loss of epidermis and at least some dermis, maybe all.

A

Ulcer

25
Q

Linear split in the epidermis and maybe the dermis

A

FIssure

26
Q

Localized damage to the skin due to scratching

A

Excoriation

27
Q

Plug of sebaceous gland and keratinized material lodged in opening of hair follicle (acne)

A

Comedones

28
Q

Small superficial keratin cyst w/ no visible opening

A

Milia

29
Q

Cavity lined with epithelium containing fluid, puss

A

Cyst

30
Q

Infected lesion surrounded by a membrane and filled with exudate

A

Abscess

31
Q

Narrow, elevated tortuous channel produced by parasite

A

Burrow

32
Q

Thickening of epidermis with increased skin markings due to scratching

A

Lichenification

33
Q

Surface contains a rounded depression in the center

A

Umbillicated

34
Q

Dilated superficial blood vessels

A

Telangectasia

35
Q

Circumscribed deposit of blood <1 cm

A

Petechiae

36
Q

Circumscribed deposit of blood >.5cm

A

Ecchymosis

37
Q

Inflammation of hair follicle, resulting in localized accumulation of pus and dead tissue

A

Boil or faruncle

38
Q

Clustered faruncles

A

Carbuncle

Dermatology (10 decks)

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