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Pathoma
Skin Pathology
60
Pathology
Graduate
02/24/2014

Additional Pathology Flashcards

 


 

Cards

Term
layers of skin
Definition
stratum basalis, spinosum, granulosum, corneum
Term
atopic dermatitis
Definition
eczema; pruritic oozing rash with vesicles and edema; type I HSR
Term
with asthma and allergic rhinitis
Definition
atopic dermatitis
Term
causes of contact dermatitis
Definition
poison ivy and nicely jewelry, irritant chemicals, drugs
Term
treatment of acne vulgaris
Definition
benzoyl peroxide and vitamin A derivatives (isotretinoin)
Term
salmon colored plaques with silvery scale
Definition
psoriasis
Term
excessive keratinocyte proliferation
Definition
psoriasis
Term
HLA with psoriasis
Definition
HLA-C
Term
histology of psoriasis
Definition
acanthosis, parakeratosis, munro microabscesses
Term
acanthosis
Definition
epidermal hyperplasia
Term
parakeratosis
Definition
hyperkeratosis with retention of keratinocyte nuclei in stratum corneum
Term
munro microabsecces
Definition
collection of Nt in stratum corneum
Term
auspitz sign
Definition
thinning of epidermis above elongated dermal papillae -> bleeding
Term
pruritic, planar, polygonal, purple papules
Definition
lichen planes
Term
wickham striae
Definition
lichen planes
Term
saw tough dermal-epidermal junction
Definition
lichen planes
Term
with chronic HCV infection
Definition
lichen planes
Term
pemphigous vulgaris mechanism
Definition
IgG agaisnt desmoglein (type II HSR)
Term
tombstone appearance
Definition
pemphigous vulgaris
Term
positive nikolksy sign
Definition
pemphigous vulgaris
Term
fish net IF
Definition
pemphigous vulgaris
Term
bullous pemphigoid mechanism
Definition
autoimmune destruction of hemidesmosomes between basal cells and underlying basement membrane
Term
linear pattern on IF
Definition
bullous pemphigoid
Term
deposition of IgA in the dermal papillae
Definition
dermatitis herpetiformis
Term
with celiac disease
Definition
dermatitis herpetiformis
Term
targetoid rash and bullae
Definition
erythema multiform
Term
causes of erythema multiforme
Definition
HSV, mycoplasma, drugs (penicillin and sulfonamides), SLE and malignancy
Term
SJS vs toxic epidermal necrolysis
Definition
SJS= erythema multiform with oral involvement and fever
TEN= diffuse sloughing of skin, resembling large burn
Term
stuck on appearance
Definition
seborrheic keratosis
Term
leser trelat
Definition
sudden onset of multiple seborrheic keratoses and suggests underlying carcinoma of GI tract
Term
velvet like skin of axilla or groin
Definition
acanthosis nigricans
Term
associated with insulin resistance or malignancy
Definition
acanthosis nigricans
Term
pink pearly papule
Definition
BCC
Term
upper lip
Definition
BCC
Term
peripheral palisading cells
Definition
BCC
Term
keratin pearls
Definition
SCC
Term
ulcerated nodular mass
Definition
SCC
Term
actinic keratosis
Definition
precursor of SCC with hyperkeratotic scaly plaque
Term
keratocanthoma
Definition
SCC that develops rapidly and regress spontaneously
Term
mechanism of skin pigmentation
Definition
melanocytes synthesize melanin in melanosomes and pass them to keratinocytes
Term
vitiligo
Definition
localized loss of skin pigmentation; AI destruction
Term
enzyme with albinism
Definition
tyrosinase
Term
ephelis
Definition
freckle, small tan to brown macule; inc number of melanosomes
Term
melasma
Definition
hyper pigmentation of cheeks; pregnancy and oral contraceptive
Term
growth of a nevus
Definition
begins as nests of melanoctes at dermal epidermal junction -> grows by extension into dermis (compound) -> junctional component lost = intradermal nevus
Term
risk factors for melanoma
Definition
UVB, albnism, xeroderma pigmentosum, dysplastic nevus syndrome
Term
two growth types of melanoma
Definition
radial= horizontally
vertical= depth is breslow thickness most important prognostic factor
Term
superficial spreading melanoma
Definition
most common; dominant early radial growth results in good prognosis
Term
lentigo maligna melanoma
Definition
lentigious proliferation (radial growth), good prognosis
Term
nodular melanoma
Definition
early vertical growth; poor prognosis
Term
acral lentiginous melanoma
Definition
on palms or soles; in dark-skinned individuals, not related to UV
Term
impetigo
Definition
S aureus and S pyogenes
Term
rupture of pustule results in erosions and dry crusted honey colored serum
Definition
impetigo
Term
red tnder slowwen rash with fever
Definition
cellulitis
Term
necrotizing fasciitis
Definition
necrosis of subcutaneous tissues due to infection with anaerobic 'flesh eating' bacteria
Term
scalded skin syndrome
Definition
S aureus; sloughing of skin with erythematous rash and fever
Term
exfoliative A and B toxins
Definition
epidermolysis of the stratum granulosum
Term
TEN vs SSS separation
Definition
TEN = dermal epidermal junction
SSS= stratum granulosum
Term
koilocytic change
Definition
verruca
Term
firm, pink, umbilicated papules
Definition
molluscum contagiosum
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