Bone infarct

Skip to end of metadata
Go to start of metadata

Tumor biology and incidence

  • Localized area of bone with avascular necrosis
  • Conditions associated with bone infarction:
    • Trauma
    • Alcohol
    • Steroids
    • Working in conditions requiring air compression and decompression (deep see diving, caisson workers )
    • Gaucher's disease
    • Sickle cell disease
    • Gout
  • Bone infarction involving articulating ends of long bones (femur, humerus) or weight-bearing bones (talus) usually found early due to pain or joint involvement
  • Bone infarction involving metaphysis or diaphysis generally asymptomatic
    • Remain undetected until incidentally found or if patient experiences pathologic fracture or sarcomatous degeneration

Plain films

Size

Variable

Tumor effect on bone
  • Irregularly serpiginous-shaped calcified periphery possible
  • Patchy sclerosis ans lucency possible
  • Linear densities generally appear within the lesion
Cortex

If cortex involved, spares outer one third while affecting inner two thirds

MRI

  • May be diagnostic
  • May see central marrow fat within the lesion
  • May see classic "double ring" sign
    • Manifests as an inner serpiginous margin of lower T2-weighted signal and adjacent outer ring of high T2-weighted signal intensity
Unknown macro: {corr}
Unknown macro: {springerlink}
Unknown macro: {panel}

Internet resources validated by OrthopaedicWebLinks.com

Unknown macro: {cache}
Unknown macro: {report-on}
Error formatting macro: rss: java.lang.IllegalArgumentException: Invalid uri 'http://www.orthopaedicweblinks.com/cgi-bin/owl/search.cgi?query=%content:title > url encode%&xml_feed=1': Invalid query
Unknown macro: {panel-related}
Unknown macro: {rate}
Cite this page
Unknown macro: {div}

. *

Unknown macro: {page-info}

*. _

Unknown macro: {builder-spacetitle}

. _In: OrthopaedicsOne - The Orthopaedic Knowledge Network. Created

Unknown macro: {page-info}

. Last modified

Unknown macro: {page-info}

ver.

Unknown macro: {page-info}

. Retrieved

Unknown macro: {report-info}

, from

Unknown macro: {page-info}

.

Unknown macro: {builder-hide}
Page contributions
Unknown macro: {div}

The following individuals have contributed to this page:

Unknown macro: {contributors-summary}