Dermatology Flashcards
What are the 1st degree burns?
Red (epidermis)
What are the 2nd degree burns?
Blisters (hypodermis)
What are 3rd degree burns?
Painless neuropathy (dermis)
What diseases have palm and sole rashes?
TRiCKSSSSS
- toxic shock syndrome
- Rocky Mountain spotted fever
i
- coxsackie A: Hand-foot-mouth disease
- Kawasaki’s
- strep pyogenes
- scarlet fever
- staph scalded skin syndrome
- syphilis
- streptobacillus moniliformis
What is erythema multiforme?
Target lesions
- viral
- drugs
What is Stevens-Johnson syndrome?
Erythema multiforme major
(Mouth, eye, vagina)
What is Toxic Epidermal Necrolysis?
Steven-Johnson syndrome w/ skin sloughing
What is Pemphigus vulgaris?
Ab against desmosomes =>
- circular Immunofluorescence
- in epidermis
- oral lesions
- pos Nikolsky sign
What is Bullous Pemphigoid?
Ab against hemidesmosomes =>
- linear Immunofluorescence
- subepidermal
- “floating” keratinocytes
- eosinophils
What is eczema?
Dry flaky dermatitis in flexor creases
“Itch that rashes”
What is Nummular dermatitis?
Circular eczema
What is Spongiotic eczema?
Weeping eczema: scratching causes oozing “like a sponge”
What is Lichenification?
Scratching => thick leathery skin
What is Pityriasis Rosea?
Herald patch that follows skin lines
“Christmas tree pattern”
Tx: sunlight
What is Lichen Planus?
Polygonal pruritic purple papules
What is Scabies?
Linear excoriation “burrows” in webs of fingers, toes, belt line
(d/t Sarcoptes scabiei)
What does UV-A cause?
Aging
What does UV-B cause?
Burns and cancer
What are the ABCD’s that indicate worse prognosis of skin cancer?
- Asymmetric
- irregular Borders
- Color differences
- > 4 mm Diameter
What does the Clark level tell you?
Invasion of melanoma
What does Breslow’s classification tell you?
Depth of melanoma
Where are Malignant Melanomas usually found?
Males: back
Females: leg
What is the precursor of a malignant melanoma?
Hutchison’s freckle
What are the types of Malignant Melanoma?
Superficial spreading
Nodular
Lentigo malignant melanoma
Acral lentigous
