PDCI Derm Flashcards
(22 cards)
Patch
Primary
Change in normal skin color
No elevation or depression
Greater than 1 cm
Large macule
Macule
Primary
Change in normal skin color
No elevation or depression
Less than 1 cm
Small patch
Papule
Primary
Elevated lesion
Less than 1 cm
Nodule
Primary
Solid mass
Can feel something underneath
Larger than 1 cm
Tumor
Primary
Solid mass
Greater than 2 cm
Large nodule
Plaque
Primary
Wide, plateau like elevation (wider than tall)
Can be formed by groups of papules
Wheal
Primary
Pink transient swelling
Plateau like elevations
Usually oval
Vesicle
Primary
Elevated with fluid
Less than 1 cm
“Small blister”
Small bulla
Bulla
Primary Round irregularly shaped blisters Contains fluid Larger than 1 cm "Large blister"
Large vesicles
Pustule
Primary
Elevated with pus
Can develop from papules or vesicles
Vesicles with pus
Erosion
Secondary
Lose superficial dermis
Previous vesicle or bulla
No scar
Ulcer
Secondary
Lose epidermis and dermis
Scarring
Fissure
Secondary
Deep linear cleft
Causes pain
Scar
Secondary
New connective tissue that replaced lost dermis
Can be thick or atrophic
Crust
Secondary
Dried serum pus or blood mixed with epithelial (or bacterial) debris
Dries up after oozing
Think of poison ivy scab
Scale
Secondary
Flakes of corneum (exfoliated epidermis)
Think of dry legs
Lichenification
Secondary
Thick skin from constant rubbing
Has skin lines
Atrophy
Secondary Thinning of skin Shiny Dips in Think of stretch marks
Excoriation
Self induced scratch marks
Pick at own skin
Koebner’s phenomenon
Lesions of dermatitis in question at sites of trivial injuries
Burrow
Secondary
Slightly raised tunnel in epidermis
Usually in finger webs and sides of fingers
ABCDEs of melanoma
Asymmetry Border irregularity Color variegation Diameter >6mm (#2 eraser) Evolution
