Radio last review

quickster2008's version from 2015-06-04 12:28


Question Answer
calcaneal index!!!!?
what criteria would a pt meet for a DEXA scan??
What is tibiotalar slant? it is secondary to ? causes what changes in foot?angulated deformity of ankle mortise, secondary to premature closure of lateral tibial epiphysis following ischemic episodes. Causes pronatory changes in foot.
Erlenmeyer Flask Deformity seen in? Gaucherʼs disease, Niemann-Pick, thalassemia, anemias, fibrous dysplasia, metaphyseal dysplasia (Pyleʼs), osteopetrosis, heavy metal poisoning.
Radiographic hallmark of Acromegaly? fat pad thickening
ST and oust radio findings of osteomyelitiswon't show any signs until 7 days, ST swelling and bone destruction "mouth eaten" periosteal response
what is the periosteal responseperiosteum is lifted and formation of involucrum occurs (usually7-10 days) sequestrum occurs after-3-6 weeks
stages of bone scan1. blood flow 2. blood pool 3. bone uptake 4. delayed 24 hrs
in what stage of bone scan do u diff cellulitis from osteomyelitis(bone infection)3rd stage
which marker in bone scan is highly specific? highly sensitive?sensitive-tech 99, specific gallium
used to diff charcot from osteomyelitis? would it be + or - for each of theseindium + for osteo, -
T or F gallium helps clarify if Tc-99 reflects hyperemia or true osteomyelitisT
what type of signal would unhealthy marrow have on T1decr signal
what angles would u use to determine if pt has haglund's deformitycalcaneal inclination angle and fowler philip angle
If CI +FP is greater than 90 deg what would u do for haglundsosseous resection
what are the true AVNSlegg(prox femur), diaz, koehler, frieberg, trever and renandier
how would an AVN or areas without blood supply appear compared to areas with blood supplywithout blood supply appears whiter, areas with blood appear as decr bone density
evaluation of bunionsHA>PASA +DASA occur at ST level(positional), if HA
simmon's anglerelationship btw 1st MT and talus
stages of charcot1. fragmentation 2. coalescence 3. reconstruct
Which phase of DNA shows debris formation?destructive
Which phase of charcot shoes normal density?reconstruct
osteochondritis dessicanssmall necrotic segment in bone. Medial lesion dome is associated with PIMP, lateral lesion associated with DIAL
woven boneinvolucrum
sequestrum and involucrum are caused by infection spread by a. blood b. animal bite c. ulcer or nail infection d. all of abovea
hypertrophic vs hypotrophichypotrophic-NWB(FFO, licked candy stick(tapering of MT) hypertrophic-WB(anke, RF, midget) 3 stages and 6 D's
most common location for hypertrophic charcotlisfranc's jt(midfoot)
cause of neuropathic osteoarthtopathy1. neurotraumatic-pt has loss of pain sensation and so get bony destruction from repetitive trauma


Question Answer
What diseases are the great mimics?Pagetʼs, Fibrous dysplasia, gout, syphilis
Umbau zonenpseudofractures
increment fracturespseudofractures
How do pagetic lesions appear in Tech 99?hot
Cavus deformity with ground glass appearance of medullary bone? polio
Osteitis Deformans pagets
Pseudo Hypoparathyroidism gives youbrachymetatarsia.
brachymetatarsia. should be brachydactlyPseudo Hypoparathyroidism
Lack of the zone of provisional calcification rickets
what does it mean when evaluating bunions in the combinedcombined = HA angle is much larger than pasa/dasa.
gaucherClassic presentation in femur is with ischemic necrosis of the proximal end and an “Erlenmeyer flask” deformity at the distal end of the same bone.
“Hand-Foot Syndrome” sickle
“Hairy skull response”sickle
what type of infarcts are common in sickle?Cortical infarcts are more common than medullary.
Gaucher’s and Niemann-Pick are similar exceptN-P does not have lytic lesions or osteonecrosis.
Diagnosis generally made with a chest x-raysarcoidosis
Minute subcortical and periarticular cyst like punched-out lesions, which may be transient. sarcoidosis
Sarcoidosis involves what its what jtsmiddle and distal phalanges of the fingers and toes.
what systemic dz does not have periosteal responsesarcoidosis
associated with pulmonary fibrosis.sarcoidosis
shows patchy spots of infarcts Pancreatitis
Pressure Induced Osteoarthropathy caisson
deficiency of factor VIII antihemophilic factor (AHF)Hemophilia A
deficiency of factor IX plasma thromboplastin component (PTC) Hemophilia B
Renal osteodystrophy seen inHyperparathyroidism, rickets (shows anterior tibial bowing), osteomalacia, osteoporosis, ST and vascular calcifications, osteosclerosis.(bone disease occurs when the kidneys fail to maintain the proper levels of calcium and phosphorus )
Premature physeal fusion Hypoparathyroidism
dif btw primary and secondary hypoparathyroidism primary-deficient parathyroid hormone production, Secondary is when the end organ is unresponsive to PT hormone seen in pseudo and pseudo-pseudo.
Pathological Fracture in pagetsBanana like
malignant fibrous histiocytomacancerous tumor
Congenital pseudoarthroses neurofibromatosis
Candy cane licked appearance seen in PA, RA, acute charcot
ground glass appearance due to hyperemiapolio
CAFÉ AU LAIT SPOTS (spare the extremities)neurofibromatosis
Skin neurofibromas are all over.neurofibromatosis
Local giantism.neurofibromatosis
Barotraumatic Osteoarthropathyanother name for caisson
Short metatarsals (metacarpals) and phalangesPSEUDOHYPOPARATHYROIDISM
Hypercalcemia may occur in pagets
Serum Alkaline Phosphatase levels elevated pagets
Salmonella is associated with sickle cell and is ?osteomyelitis
what would osteomyelitis look on X-rayincr in soft tissue, atrophy of bone
salmonella occurs in what specific locationdiaphysial
fish vertebraesickle cell
shortened metatarsals and phalanges secondary to premature epiphyseal closurepolio


Question Answer
occurs as a result of ascorbic acid deficiencyscurvy
dz where quantity of bone per unit volume is decreased in amount but is normal in compositionosteoporosis
occurs as a result of calcium deficiency which ultimately leads to unmineralized osteoid matrixosteomalacia or rickets
the second stage of CRPS is characterized by spotty areas of incr or decr densitydecr
rugger jersey spinehyperparathyroidism
what type of osteoporosis affects F older than 70 yotype 2
in osteoporosis the PTH levels are incr or decrdecr
what condition does NOT have superiosteal bone depositionhyperparathyroidism


Question Answer
does the most common malignancy of bone start in bone?metastases to bone, starts in breast, prostate, lung, kidneys
Most common primary malignancy of bone?Multiple Myeloma
Fallen Fragment sign is seen in what type of tumor?Unicameral Bone Cyst
Brown tumors are specific to what disease?hyperparathyroidism
Lytic lesion in metaphysis extending into epiphysis?Giant Cell tumor
metaphyseal tumor pointing away from the jointOsteochondroma
Ollierʼs Disease multiple enchondromatosis
what would you use to evaluate tumor matrix. MRI, CT, ultrasound, etcCT
what would osseous vs cartilage vs fibrooseeous look like in bone tumorsosseous-cloud like, cartialage-C shaped and punctate, fibroosseous-ground glass
clinical signs of the most common primary malignancyPOEMS polyneuropathy, organomegaly, endocrine abnormalities, M proteins, skin lesions
rate of growth of tumorspermeative-wide zone of transition(malignant) moth eaten-intermediate zone of transition (benign and malignant) geographic-short zone of transition (benign and cysts but some low grade malignants)
chondrosarcoma rate of growthgeographic
tumor that has cloud like and punctate appearanceosteochondroma bc bone and cartilage