DXI II UPDATED ACTUAL EXAM STUDY

DXI II UPDATED (ACTUAL / EXAM) STUDY

+QUESTIONS AND VERIFIED 100% CORRECT ANSWERS

What prevents epiphyseal involvement with suppurative osteomyelitis - ----answers___open growth plates

What is the earliest radiographic sign of suppurative osteomyelitis - ----answers___soft tissue edema

When are osseous changes visible on radiograph in long bones - ----answers___10-14 days

What are radiographic features of suppurative osteomyelitis in long bone - ----answers___periosteal elevation, lytic moth eaten destruction, cortex, and medullary

What is involucrum - ----answers___layer of new bone growth outside existing bone

What is sequestrum - ----answers___pice of dead bone thats been separated from normal bone

What is cloaca - ----answers___hole in bone; sinus tract formation so pus can drain

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When is suppurative osteomyelitis seen in the spine - ---- answers___3 week latent period

How often does suppurative osteomyelitis occur in the spine - ----answers___2-4% (mc lumbar)

What does suppurative osteomyelitis look like in the spine in someone <20 - ----answers___narrow disc height w/o signs of degeneration and paraspinal edema

What does suppurative osteomyelitis look like in the spine in someone >20 - ----answers___radiolucent focus at anterior vertebral endplate--> patchy irregularity--> late disc involvement

If you see a vacuum cleft, this rules out - ---- answers___infection (pus will be there)

What is the most common complaint of suppurative osteomyelitis in the spine - ----answers___insidious onset of constant back pain

If there is a decreased disc height, what should you evaluate - ----answers___the endplates

Can infection cross joints? - ----answers___one of the only things that can cross joints. You will see irregularity of the cortex on each side of the joint 2 / 4

What are some ddx for suppurative osteomyelitis - ---- answers___osteosarcoma, ewings, osteomyelitis, eg

Brodie's abcess - ----answers___

Brodie's abcess - ----answers___

Clinical presentation of brodie's abcess - ---- answers___localized limb pain, nocturnal, alleviated by aspirin (mimics osteoid osteoma), history of recent distant infection

Bodie's abcess is most common in - ----answers___male children

Which area of bone is most commonly affected - ---- answers___metaphysis

What bacteria is most common in brodie's abcess? - ---- answers___staph aureus

What is brodie's abcess commonly misdiagnosed as - ---- answers___chronc recurrent multifocal osteomyelitis

Radiologic features of brodie's abcess - ----answers___oval radiolucency, no visible matrix surrounded by halo or doughnut rum of heavy reactive sclerosis 3 / 4

How large is the radiolucency in brodie's abcess? - ---- answers___> or equal to 1 cm

Does brodie's abcess break through the cortex - ---- answers___no

How do you differentiate from osteoid osteoma - ---- answers___radiolucent nidus of osteoid osteoma is < 1 cm and may have a target center of calcification

What else do brodie's abscesses look like - ----answers___eg

A characteristic mri finding consistent with subacute osteomyelities is the _______ sign - ----answers___penumbra

On t1 weighted images, penumbra sign can be identified by the presence of a ______ intensity lesion surrounded by a ________ intensity rim - ----answers___high Less hyperintense

If this appears, then you know its not a tumor

What is the treatment for brodie's abcess - ---- answers___surgical curettage

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