Dermatology: Introductory Terms Flashcards

1
Q

Maculae

A

Non-palpable and less than 1 cm

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2
Q

Patch

A

Non-palpable and greater than 1 cm

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3
Q

Papule

A

Palpable, circumscribed, solid and less than 1 cm

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4
Q

Plaque

A

Palpable, solid, and often a confluence of papules greater than 1 cm

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5
Q

Nodule

A

Palpable, circumscribed, solid and >1,<2 cm

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6
Q

Tumor

A

Palpable, circumscribed, solid, and greater than 2 cm

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7
Q

Wheat

A

Plateau-like elevation due to edema in the skin
Transient
Surrounded by macular erythema

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8
Q

Vesicle

A

Fluid filled blister less than 1 cm

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9
Q

Bulla

A

Fluid filled blister greater than 1 cm

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10
Q

Pustule

A

Similar to vesicles, but filled with purulent material

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11
Q

Scale

A

Masses of keratin, papulosquamous when with a papule/plaque

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12
Q

Crusts

A

Scab

Any combination of serum, pus, blood with inflammatory cells

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13
Q

Excoriation and Abrasion

A

Mechanical removal of the epidermis, papillary dermis

Excoriation are typically self induced

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14
Q

Fissure

A

Cracks and clefts which are very well defined and linear

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15
Q

Erosion

A

Loss of a portion of the epidermis

Can be from a ruptured bulla

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16
Q

Ulcer

A

Loss of epidermis and variable portions of the dermis

17
Q

Atrophy

A

Thinning of the epidermis and dermis

18
Q

Scar

A

New connective tissue replacing lost substance in epidermis or dermis

19
Q

Burrow

A

A narrow, elevated tortuous channel produced by a parasite

20
Q

Carbuncle

A

Connected furuncles

21
Q

Comedone

A
Open = blackhead
Closed = acneiform papule with no opening
22
Q

Cyst

A

A circumscribed lesion with a wall and a lumen, often a punctum

23
Q

Escher

A

Black crusted ulcer secondary to tissue death

24
Q

Furuncle

A

Boil, abscess, singular, often dome-shaped

25
Q

Lichenification

A

Thickened epidermis secondary to scratching

26
Q

Milia

A

Small, superficial keratin cyst with no visible opening

27
Q

Petechia

A

A small (2-3 mm) circumscribed deposit of blood in the skin

28
Q

Purpura

A

A larger deposit of blood in the skin (5+ mm)

29
Q

Telangiectasia

A

Dilated superficial blood vessels