Primary Lesions
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Primary Lesions
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PRIMARY LESIONS
12 PRIMARY LESIONS (FLAT, RAISED, FLUID FILLED (RAISED))
Primary Lesions | RAISED LESIONS | FLAT LESIONS | FLUID FILLED (RAISED) |
---|---|---|---|
Macule | Flat, circumscribed, discolored, <1cm For example: freckles, flat nevi, petechia | ||
PATCH | flat, irregular, >1cm (vitiligo) | ||
PAPULE | SOLID, ELEVATED, CIRCUMSCRIBED <1CM E.G.RAISED NEVUS, WART [VERRUCA] HINH NGON TAY | ||
PLAQUES | COALESCED (GROUPING TOGETHER) PAPULES, >1CM (PSORIASIS) | ||
NODULE | SOLID, ELEVATED, 1-2CM (LIPOMA = FATTY GROWTH) | ||
TUMOR | LARGER THAN A FEW CENTIMETERS, FIRM OR SOFT (LIPOMA - FAT TUMOR) DOESNT MEAN CANCER, TUMOR CAN BE BENIGN OR MAGLINANT | ||
WHEAL | SUPERFICIAL, RAISED, ERYTHEMATOUS, IRREGULAR (ALLERGIC REASTION, PPD, MOSQUITO BITE) - CAUSES INTERSTITIAL EDEMA <1CM | ||
URTICARIA (HIVES) | WHEALS COALESCE TO FORM EXTENSIVE REACTION; INTENSELY PRURITIC, >1CM | ||
VESICLE | ELEVATED CAVITY WITH CLEAR LIQUID, <1CM (HERPES CIMPLEX, VARICELLA [CHICKEN POX], HERPES ZOSTER [SHINGLES], CONTACT DERMATITIS [E.G., POISON IVY] .. MUN COC NHO | ||
BULLA | ELEVATED CAVITY WITH FLUID, >1CM (CLISTER, BURNS).... MUN COC BU | ||
PUSTULE | CONTAINS PUS, FILLED WITH LEUKOCYTES, NOT NECESSARILY INFECTED (ACNE) ... CREAMY | ||
CYST | ENCAPSULATED FLUID FILLED CAVITY IN DERMIS OR SUB-Q (SEBACEOUS CYST) IF DEEP, MAY BE HARD TO DIFFERENTIATE FROM A NODULE OR TUMOR (E.G. BREAST CYST VERSUS TUMOR) |