Skin

Basal cell

Sqauamous cell

Melanoma

Actinic keratosis - yellow Leukoplakia - white

Irritated hair follicles (groin, neck)

• silver scales (most significant feature is psoriatic plaques) • pitted nails • occurs on extensors • 15% joint involvement • hyperuricemia

• contact dermatitis • remove agent • flexors • “hold things with your flexors, therefore flexors get contact dermatitis”

OA- ones who abuse RA- hereditary; systemic Psoriatic - aggressive and mean

• lice (nits) - special shampoo is used; then used again one week later to kill nits

• love warm damp, hairy spots - ‘furrow and burrow in with all their mites”

• ringworm - “fungus among us”

Spirochete carried by ticks Bite => erythema migrans => central clearing => bull’s eye for 2-3 weeks

• purple • strep • shiny red vesicles • fever • patches

“Such a pity they have a herald patch” • herald patch • 10-30 years old • fatigued • post viral infection • comes on fast • recedes slowly • on the torso => branches out into a Christmas tree

• dandruff on steroids • scaly • oily • itchy • erythema • painful (skinalgia) • binds hair (cradle cap) • blepharitis • tx: shampoo (sulfur and aspirin), steroid cream

Rash (heliotrope [sun sensitive]) Eyelids and knuckles

• butterfly rash (malar) heliotrope [sun sensitive] - eyelids are preserved

Vulgaris - young; puberty Rosacea - Nosey Rosey (bulbous unilateral nose growth); rhinoplasty

• staph and strep • primary (vesicle and bulla) • secondary: crusty

Impetigo: erupts and oozes, crusty/honeycomb, very contagious B2 riboflavin problem: cheilosis; not contagious

• subcutaneous fungus causing white patches - shows up in the summer

Patchy absence of melanin - 20’s and 30’s

• thickened epidermis induced by scratching (washboard) - precancerous

• group of hamartomas • brown • flat • warty