MSK Flashcards
junctional loss promotes metastasis
cadherins
desmosome autoantibodies
pemphiigus vulgaris(acantholysis-separation)
hemidesmosome autoantibodies
bullous pemphigoid
pregnancy nerve block
pudendal(ischial spine)
ulnar lesion in the wrist
hook of hamate/pisiform
axillary injury locations
surgical neck of humerus/dislocation
radial injury locations
crutches, midshaft humerus fracture, subluxed radial head
fibular neck Fx
common fibular nerve(foot drop)
rigor mortis cause
lack of ATP
achondroplasia mutation
autosomal dominant FGFR3 activating
osteosarcoma lesions
codman’s triangle, sunburst X-ray(metaphysis)
ewings sarcoma gene
11,22 translocation
ewings sarcoma pathology
onion skin, blue cells on diaphysis, kids(neuroectoderm derived)
osteochondroma pathology
cartilage cap(metaphysis)
giant cell tumor lesion
double bubble X-ray(only epiphysis tumor)
Rheumatoid hand involvement
No DIPs
RA gene
HLA-DR4 (IgM against Fc portion of IgG)
sjogrens triad
dry eyes, dry mouth, arthritis
sjogrens antibodies
SS-A(Ro), SS-B(La)
pseudogout pathology
calcium pyrophosphate, positive birefrigence
HLA-B27 associated arthropaties
ankylosing spondylitis, psoriatic, IBD, Reiter’s(cant see/pee/climb a tree-post infectious)
SLE common COD
nephritis
sarcoidosis lesions
bilateral hilar adenopathy (with noncaseating granulomas)
poly/dermatomyositis labs(proximal weakness+facial rash)
anti-Jo, ANA, high CK
myasthenia gravis antibodies
postsynaptic ACh receptor
lambert eaton antibodies
presynaptic Ca channel
MG association
thymoma/thymic Cancer
LE association
small cell lung cancer
scleroderma antibody
Scl-70(DNA topoisomerase 1), CREST=anti centromere
genital warts causes
syphillis, HPV 6,11(verrucae/condyloma)
pemhigus antibodies
desmoglien 3
dermatitis herpetiformis deposits
IgA(celiac association)
target lesion
erythema multiforme(or lyme)
skin mucous membrane drug reactions
Stephens-Johnson, Toxic epidermal necrolysis
acanthosis nigricans associations
hyperinsulinemia, malignancy
actinic keratosis risk
squamous cell carcinoma
erythema nodosum associations
crohns, sarcoid, mycoB/histo/strep/coccidio
lichen planus association
hepatitis C(6 P’s-purple, pruritic, planar, polygonal, plaques, papules, sawtooth junction)
Hairy leukoplakia cause
EBV(often HIV+)
most common skin cancer
basal cell(palisading nuclei, rare metastasis)
squamous cell cancer pathology
keratin pearls
melanoma genetics
s-100 marker, BRAF mutations
aspirin MOA
acetylate both COX1&2
aspirin toxicity
GI bleed/tinnitus, Reye’s(kids with virus)
COX2 risk
thrombosis
acetominophen difference
No anti-inflammatory(only analgesic/antipyretic) use for kids
acetominophen toxicity
loss of glutathione(give n-acetyl cysteine)
TNF alpha inhibitors
inflixamab, adalimumab, etanercept
chronic gout choices
xanthine oxidase inhibitors(allopurinol/febuxistat), inhibit PCT resorption(probenacid), bind tubulin inhibit polymer (colchicine)
osteogenesis imperfecta defect
autosomal dominant collagen type 1(blue sclera-choroidal veins)
osteopetrosis mutation
carbonic anhydrase II
osteopetrosis Tx
bone marrow transplant
paget disease of bone risks
high output heart failure, osteosarcoma
vertebral TB infection
potts disease
gardner syndrome pathology
facial osteoma, FAP, fibromatosis of peritoneum
pathology difference between dermato/polymyositis
dermato=perimysium, poly=endomysium
x-linked muscular dystrophy gene
dystrophin(muscle replaced by adipose, calf pseudohypertophy)
most common soft tissue tumors
lipoma, liposarcoma(malignant), rhabdomyosarcoma(kids)
rhabdomyosarcoma test
desmin+(head/neck/vagina)
atopic dermatitis(eczema) hypersensitivity
type I(asthma/allergic rhinitis associated)
psoriasis gene
HLA-C
psoriasis sign
auspitz sign(bleed on scrape)
multiple seborrheic keratoses sign
leser-trelat-GI carcinoma
xeroderma pigmentosum defect
nucleotide excision repair(autosomal recessive)
keratoacanthoma(fast growing SCC) Tx-
NONE-spontaneous regression
melanin precursor
tyrosine
high ALP disease
pagets
posterior duodenal ulcer lesion
gastroduodenal artery bleed
CN autonomic ganglia/functions
otic-parotid gland, geniculate-VII sensory(2/3taste), submandibular-sublingual/submandibular gland, PPG-lacrimal&nasal secretions