Dermatology Language Flashcards

1
Q

Skin jobs

A

Protect against infections
Maintain fluid balance
Vitamin D synthesis

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2
Q

Keratinocytes

A

Building tough skin cells
Secrete keratin

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3
Q

Melanocytes

A

Synthesize melanin

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4
Q

Langerhans cells

A

Dendritic cells

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5
Q

Merkel Cells

A

Have touch sensors
Deeper in epidermis and in dermis

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6
Q

Macule

A

Flat
Less than 1 cm
No elevation or depression
Petechiae

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7
Q

Patch

A

Flat
Greater than 1 cm
No elevation or depression
Vitilligo

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8
Q

Plaque

A

Fat/elevated
Greater than 1 cm
Well circumscribed (clear border)
Psoriasis

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9
Q

Papule

A

Elevated
Solid
Less than 1 cm
Angioma, wart

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10
Q

Nodule

A

Elevated
Solid
Greater than 1 cm
Epidermal inclusion cyst

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11
Q

Vesicle

A

Elevated
Fluid filled
Less than 1 cm
Herpes

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12
Q

Bullae

A

Elevated
Fluid filled
Greater than 1 cm
Bullous pemphigoid

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13
Q

Pustule

A

Elevated
Pus-filled
Less than 1 cm
Acne

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14
Q

How to measure lesion

A

Length x Width x Depth

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15
Q

Erythema

A

Blanchable (color goes away when you push).
Does NOT mean red

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16
Q

Purpura

A

Does not blanch.
Does NOT mean purple

17
Q

Crust

A

Dried exudate or serum
Impetigo

18
Q

Fissure

A

Split in skin
Psoriasis

19
Q

Lichenification

A

Thickening of skin

20
Q

Erosion

A

Partial loss of epidermis
Scratching or minor injury

21
Q

Ulceration

A

Full thickness loss of epidermis
Pressure ulcer or pyoderma gangrenosum

22
Q

Excorations

A

Self inflicted skin lesions from itching

23
Q

Urticaria

24
Q

Annular

A

Round ring shaped lesions.
Central clearing
Tinea corporis

25
Nummular
Coin shaped Well-demarcated Nummular eczema
26
Telangiectasia
Smalled, widened blood vessels Rosacea, aging, pregnancy, basal cell cancer
27
Verrucous
Wart-like growth pattern Verruca vulgaris
28
Extensor surfaces
Outer surface of joint Psoriasis
29
Flexor surfaces
Inside surface of joint Atopic dermatitis
30
Generalized/diffused
Takes over whole body Viral/drug rxn
31
Clustered
Grouped together Herpes
32
Photo distributed
Present on areas exposed to sun Sunburn, lupus, dermatomyositis
33
Acral
Effects distal portions of limbs (hands and feet), ears, nose Acral lentiginous melanoma
34
Seborrheic
Follows oily hair-bearing areas of head and neck. Seborrheic dermatitis
35
Eczematous
Bullae Vesicles Erythema papules Scaling Fissures Erosions Lichenification Phys exam finding of topic dermatitis
36
Type I hypersensitivity rxn
IgE Basophils releases vasodilators Asthma, allergies, atopic dermatitis
37
Type II hypersensitivity rxn
IgG or IgM Cytotoxic Pemphigus vulgaris Bullous pemphigoid
38
Type III hypersensitivity
Immune complex mediated. Neutrophils Rheumatoid arthritis, Lupus, necrotising vasculitis, glomerulonephritis
39
Type IV hypersensitivity rxn
Cell mediated TH1 cells activate macrophages or Tc cells. Delayed Type I diabetes TB skin test NO antibodies Contact dermatitis Graft rejections