Papule - CORRECT ANSWER Elevated, firm, circumscribed area
< 1 cm
example: warts
Patch - CORRECT ANSWER Flat, nonpalpable
Irregular shaped
... [Show More] macula
> 1 cm
vitiligo
Macule - CORRECT ANSWER skin color change w/out elevation. example: freckle
note: Macule < 1 cm flat
Patches are macules > 1 cm
Plaque - CORRECT ANSWER Elevated, Firm
Rough lesion
> 1 cm
Ex: Psoriasis
Wheal - CORRECT ANSWER Elevated
Irregular shaped
Insect bite
Allergic reaction
Nodule - CORRECT ANSWER Firm
Circumscribed
Deeper in the dermis than a papule
1-2 cm
Tumor - CORRECT ANSWER Evaluated
Solid
> 2 cm
Vesicle - CORRECT ANSWER Elevated
Circumscribed
Superficial
< 1 cm
Chicken pox
Bulla - CORRECT ANSWER Blister
1.0 cm or larger
pustule - CORRECT ANSWER Acne
Similar to a vesicle but filled with purulent fluid
scale - CORRECT ANSWER Heaped-up
Keratinized cells
Flaky
Seborrheic dermatitis
lichenfication - CORRECT ANSWER Rough, thickened
Secondary to itching
Chronic dermatitis
keloid - CORRECT ANSWER Firm, progressively enlarging nodules with shiny, hairless surface.
May occur on extremities, earlobes (predominantly), presternal area, neck & face after trauma
May have stellate shapes
Annular - CORRECT ANSWER Circular example: ringworm
Confluent - CORRECT ANSWER Lesions which run together
Discrete - CORRECT ANSWER Individual lesions
Separate
Erysipelas - CORRECT ANSWER Erysipelas is a streptococcal infection of the superficial dermis
Consists of well-demarcated, erythematous, edematous, warm plaques
"St. Anthony's fire"
Staph scaled-skin syndrome - CORRECT ANSWER SSSS most often affects NB & children.
Varies from localized blister formation to exfoliation of much of the skin surface
Skin becomes fragile, tender, thin-walled, fluid-filled bullae
Mucous membranes are usually spared
Nikolsky's sign: Gentle pressure results in rupture of the lesions, leaving denuded underlying skin
Less common in adults, but may follow Staph infections (i.e. Toxic Shock Syndrome)
Impetigo contagiosa - CORRECT ANSWER Superficial Strept or Staph infection consisting of honey-colored crusts & erythematous weeping erosions
Bulluous lesions may occasionally occur
Basal cell carcinoma - CORRECT ANSWER [Show Less]