Final Exam Flashcards
m/c appendicular BBT
osteochondroma
pedunculated (coat hanger exostosis/cauliflower) or sessile
osteochondroma
hereditary multiple exostosis are multiple what?
esteochondromas
Centrally located diaphyseal/metaphyseal lesion w/ fallen fragment sign
simple bone cyst
Eccentrically located diaphyseal/metaphyseal lesion in <20 yo.
aneurysmal bone cyst
epiphyseal/metaphaseal associated with soap bubble appearance
giant cell tumor
radiolucent central nidus withs severe reactive sclerosis w/ night pain relieved by aspirin
osteoid osteoma
night pain relieved by aspirin and appears like an osteoid osteoma.
Brodie’s abscess
m/c BBT of the hand (stippled)
enchomdroma
multiple enchomdromas is called?
Ollier’s disease
what % of Ollier’s goes malignant?
10-50%
what % of Ollier’s goes malignant?
10-50%
Ollier’s with calcification
Maffucci’s synd
m/c spinal BBT w/ vertical striations known as “corduroy cloth” appearance
hemangioma
round/ablong radiopaque lesion (bone island)
enostoma
multiple bone islands
osteopoikilosis
m/c BBT of the neural arch
osteoblastoma
m/c skull BBT (particularly frontal sinus)
osteoma
osteomas are best seen on what projection?
Caldwell
physiological resorption of normal bone replaced by fibrous tissue
fibrous dysplasia
Saber shin tibia, Sheppard’s crook, “ground glass”, cafe au lait spots with “Coast of Main” appearance.
fibrous dysplasia
Scoliosis, cervical kyphosis, vertebral body scalloping with IVF enlargement.
neurofibromatosis
“cafe au lait” spots with “coast of California” appearance
neurofibromatosis
50+ yo wth cachexia, weight loss, and anemia
Multiple myeloma
m/c primary malignancy of bone with malignant proliferation of plasma cells into bone marrow
Multiple myeloma
“punched out lesions”, vertebral plana, and “rain drop skull”.
Multiple myeloma
M spike, albumin/globulin ratio reversal, Bence-Jones proteinuria, elevated ESR.
Multiple myeloma
m/c malignant tumor of bone
metastatic disease (lytic/blastic)
40 + w/ recent unexplained weight loss and skeletal pain worse at night.
lytic metastasis
Moth eaten or permeative distruction. “swiss cheese” appearance on skull.
lytic metastasis
elevated alkaline phosphatase and + bone scan.
lytic metastasis
m/c form of metastasis in 20-40 yo w/ ivory white vertebrae and anterior body scalloping.
Hodgkins
Unilateral hilar lymphadenopathy and reed Sternberg cells
Hodgkin’s
ivory white vertebrae w/ no cortical thickening or bone enlargement. (increased Alk Phos)
Blastic mets
Causes cortical thickening, picture frame vert, increased bone density, coarsened trabeculae, bone exapnsion, bowing deformities.
Paget’s (Osteitis Deformans)
Stages of Paget’s: 1-4
- Lytic –> 2. Combined –> 3. Sclerotic –> 4. malignant (osteosarc)
m/c malignancy in children
osteosarcoma
spiculated/radiating/sunburst periosteal reaction in 10-30 yo
osteosarcoma
spiculated/radiating/sunburst periosteal reaction in 40 + yo
chondrosarcoma/fibrosarcoma
m/c in long bone diaphysis of 10-25 yo
Ewing’s Sarcoma
Multi-paralleled onion skin (laminated) periosteal reaction w/ bone expansion, Codman’s triangle, and saucerization.
Ewing’s Sarcoma
Aberrrant notochordal cell tumor m/c found in sacrum of 40 + yo. (2nd m/c = skull)
chordoma
spinouses deviate toward concavity
rotatory scoliosis
spinouses deviate toward convexity
simple scoliosis
Cobb’s and Risser Ferguson’s are for?
scoliosis
Under 20 deg curve –>
adjust apex and monitor
21-40 deg curve –>
send to ortho for bracing (Milwaukee)
40 + curve –>
surgical consult
50 + curve –>
cardio-pulm compromize and DJD
Symmetrical/bilateral uniform j. loss, rat bite erosions, pannus, periarticular osteoporosis, DIP’s spared, and atlanto-axial instability.
RA (Still’s in children)
Haygarth’s nodes in RA affect the?
MCP’s
RA + dry eys/mouth =
Sjogren’s
(+) chest expansion, Forester’s Bowstring, and Lewin’s supine
Ankylosing Spondylitis (AS)
b/l SI j. fusion (ghost j’s)
AS
Shiny corner sign, b/l MARGINAL syndesmophytes, vertebral squaring, Bamboo spine, dagger sign, trolley track sing, and poker sign.
AS
identical to AS in pelvis + GI dysfunction
enteropathic arthropathy
males 20-50 with silver scaly ext. lesions, pitted nails, and sausage digits.
psoriatic arthritis
increased j. space, mouse ear deformity, pencil in cup deformity, Ray sign, atlanto-axial instability, NON-MARGINAL spinal syndesmophytes.
psoriatic arthritis
Males 20-30 w/ urethritis, conjunctivitis, arthritis, and Hx of chlamydia.
Reactive (Reiter’s) arthritis
Calcaneal spur, fluffy periostitis, and NON-MARGINAL spinal syndesmophytes.
Reactive (Reiter’s) arthritis
Females w/ sunlight induced malar/butterfly rash, oral ulcers, discoid lesions, alopecia, and Raynaud’s.
SLE
+ rebound effect
ulcer deviation of phalanges w/o joint destruction (SLE)
females 30-50 with distal tufts erosions
Scleroderma (Progressive Systemic Sclerosis)
associated with CREST synd
Scleroderma (PSS)