Rapid Fire Facts Flashcards
most common cause of neural tube defects
folate deficiency
most common preventable cause of congenital malformations in US
alcohol during pregnancy
drugs act on microtubules
vincristine, vinblastine, paclitaxel, docetaxel, benzimidazoles, greseofulvin, colchicine
adds phosphate group using ATP
kinase
removes phosphate group
phosphatase
adds inorganic phosphate (w/o using ATP)
phosphorylase
adds carboxyl group (COOH); requires biotin as cofactor
carboxylase
removes carboxyl group
decarboxylase
adds hydroxyl group (OH)
hydroxylase
removes hyodroxyl group
dehydroxylase
oxidizes substrate using electron acceptor (NAD+ or NADP+)
dehydrogenase
hyperflexible joints, arachnodactyly, aortic dissection, lens dislocation
Marfan syndrome (defective fibrillin)
hereditary nephritis, cataracts, sensorineural hearing loss
Alport syndrome (defective collagen IV) "Can't see, can't pee, can't hear high C"
lesion to brain that causes poor repitition
arcuate fasciculus
lesion to brain that causes hemispatial neglect syndrome
non-dominant angular gyrus (parietal cortex)–> right lobe
lesion to brain that causes poor comprehension
Wernicke’s area
lesion to brain that causes poor verbal expression
Broca’s area
lesion to brain that causes personality changes and disinhibition
frontal cortex
lesion to brain that causes dysarthria
cerebellar vermis
lesion to brain that causes agraphia and acalculia
dominant angular gyrus (parietal cortex)–> left lobe
Gerstmann syndrome
“worst headache of my life”
subarachnoid hemorrhage (rupture of aneurysm)
lucid interval following head truama
epidermal hematoma
bloody CSF on LP
subarachnoid hemorrhage
most common cause of subdural hematoma
rupture of bridging veins
most common cause of epidural hematoma
rupture of middle meningeal artery (fracture of temporal bone)
more common in young adults
damage to right vagus nerve or nucleus causes uvula to deviate to
the left
uvula deviates away from lesion
damage to right hypoglossal nerve or nucleus causes tongue to deviate to
the right
“licks the lesion”–> deviates toward lesion
Primary brain tumor: psuedopalisading necrosis
glioblastoma
Primary brain tumor: polycythemia
hemangioblastoma
Primary brain tumor: neurofibromatosis type 2
Schwannoma
Primary brain tumor: associated with von Hippel-Lindau syndrome
hemangioma
Primary brain tumor: foamy cells, high vascularity
hemangioblastoma
Primary brain tumor: hyperprolactinemia–> galactorrhea, amenorrhea, anovulation
prolactinoma (pituitary adenoma)
Primary brain tumor: psammoma bodies
meningioma
Primary brain tumor: fried egg appearance
oligodendroglioma “o-leggo-my-eggo”
Primary brain tumor: perivascular pseudorosettes
ependymoma
Primary brain tumor: bitemporal hemianopia
pituitary adenoma, craniopharyngioma
Primary brain tumor: worst prognosis of any primary brain tumor
glioblastoma (
Primary brain tumor: child w/ hydrocephalus
medulloblastoma, ependymoma
Primary brain tumor: Homer-Wright pseudorosettes
medulloblastoma
most common cause of dementia
Alzheimer disase
2nd most common cause of dementia
vascular dementia
extracellular amyloid deposits in gray matter
Alzheimer disease
intracellular deposits of hyperphosphorylated tau protein
Alzheimer disease
intracellular spherical aggregates of tau protein seen on silver stain
frontotemporal dementia
treatment for absence seizures
ethosuximide
conjugate lateral gaze palsy, w/ nystagmus and diplopia during lateral gaze
internuclear ophthalmoplegia (multiple sclerosis)
degeneration of dorsal columns
tabes dorsalis (tertiary syphilis)
demyelinating disease in young women
multiple sclerosis
mixed upper and lower motor neuron disease
amyotrophic lateral sclerosis (ALS)
depigmentation of substantia nigra
Parkinson disease
chorea, dementia and atrophy of caudate and putamen
Huntington disease
eosinophilic inclusions in cytoplasm of neurons
Lewy bodies
toe extension upon stimulating sole of foot w/ blunt instrument
Babinski reflex (or + Babinski sign in adults)
newborn w/ arm paralysis following difficult labor
Erb-Duchenne palsy
sensory receptor: pricking pain (fast, myelinated)
A-delta fibers
sensory receptor: burning or dull pain and itch (slow, unmyelinated)
C-polymodal fibers
sensory receptor: vibration and pressure
pacinian corpuscles
sensory receptor: dynamic/changing light, discriminatory touch
Meissner corpuscles
sensory receptor: static/unchanging light touch
Merkel discs
sensory receptor: proprioception information, muscle length monitoring
muscle spindles
sensory receptor: proprioception information, muscle tension monitoring
Golgi tendon organ
“Golgi tension”
amyloid deposits in gray matter of brain
Alzheimer disease (senile plaques)
drooling farmer
ogranophosphate poisoning
medical treatment for pheochromocytoma
phenoxybenzamine (alpha-antagonist)
selective alpha1-antagonist used to treat BPH
tamsulosin
continuous, machine-like heart murmur
patent ductus arteriosus
“boot-shaped heart”
tetralogy of Fallot, RVH
rib notching
coarctation of aorta
most common congenital cardiac anomaly
VSD
most common congenital cause of early cyanosis
tetralogy of Fallot
bounding pulses, head bobbing, diastolic murmur
aortic regurgitation
continuous, machine-like murmur
PDA
chest pain, pericardial friction rub, and persistent fever occurring several weeks after an MI
Dressler syndrome
splinter hemorrhages under fingernails
infective endocarditis
rentinal hemorrhages w/ pale centers
Roth spots (endocarditis)
heart valve most commonly involved in infective endocarditis
mitral valve
heart valve most commonly involved in IV drug users w/ infective endocarditis
tricuspid valve
JVD during inspiration
Kussmaul’s sign
granulomatous nodules in heart
Aschoff bodies (rheumatic heart disease)
most common primary cardiac tumor in adults
left atrial myxoma
most common primary cardiac tumor in children
rhabdomyoma
most common cause of constrictive pericarditis
US: lupus
developing countries: TB
c-ANCA
Granulomatis w/ polyangiitis (Wegener)
p-ANCA
Churg-Strauss, microscopic polyangiitis
treatment for thromboangiitis obliterans (Buerger)
smoking cessation
treatment for giant cell arteritis
high dose corticosteroids
benign, raised, red lesion abut the size of mole in older patients
cherry hemangioma
raised, red area present at birth, increases in size initially then regresses over months to years
strawberry hemangioma
lesion caused by lymphoangiogenic growth factors in HIV pt
Kaposi sarcoma
polypoid red lesion found in pregnancy or after trauma
pyogenic granuloma
benign, painful, red-blue tumor under fingernails
glomus tumor
cavernous lymphangioma associated w/ Turner syndrome
cystic hygroma
skin papule in AIDS pt caused by Bartonella spp.
bacillary angiomatosis
most common malignant primary bone tumor in children
osteosarcoma
most common benign bone tumor
osteochonroma
11;22 translocation
Ewing sarcoma
Rb mutation in primary bone tumor
osteosarcoma
“sunburst” pattern on x-ray
osteosarcoma
“soap bubble” appearance on x-ray
Giant cell tumor (osteoclastoma)
“onion skin” appearance of bone
Ewing sarcoma
may actually be hamartoma
osteochondroma
Codman’s triangle on x-ray
osteosarcoma
bone enlargement, bone pain, arthritis
Paget disease of bone
vertebral compression fractures
osteoporosis
positive anterior drawer sign
ACL tear
tenderness in anatomical snuffbox
scaphoid fracture
swollen, hard, painful finger joints
osteoarthritis
swollen, boggy, painful finger joints
rheumatoid arthritis
cartilage erosion w/ polished bone beneath
osteoarthritis
swollen, red, acutely painful great toe joint
gout
positively birefringment rhomboid-shaped crystals
pseudogout
negatively birefringment needle-shaped crystals
gout
bamboo spine on x-ray
ankylosing spondylitis
HLA-B27
seronegative spondyloarthropathies
pencil-in-cup deformity on x-ray of finger
psoratic arthritis
anti-Smith and anti-dsDNA antibodies
systemic lupus erythematous
anti-histone antibodies
drug induced lupus
anti-centromere antibodies
limited scleroderma (CREST syndrome)
anti-topoisomerase antibodies (anti-Scl-70)
diffuse scleroderma
anti-Jo-1 antibodies
polymyositis
anti-Ro antibodies (SS-A)
Sjogren syndrome
arthritis, dry mouth, and dry eyes
Sjogren syndrome
keratin pearls on skin biopsy
squamous cell carcinoma
most common malignant skin tumor
basal cell carcinoma
main artery of pelvis
internal iliac
main nerve of pelvis
pudundal nerve
“bag of worms” scrotum
varicocele
most common cancer in men
prostate
most common cause of urinary obstruction in men
BPH
most common treatment of erectile dysfunction
phosphodiesterase 5 inhibitors
hepatic adenoma
combined estrogen-progestin (OCP use)
“grape-like” vaginal tumor
rhabdomyosarcoma (sarcoma botryoides)
koilocytes
cervical dysplasia (HPV infection)