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  Medical Imaging  ←  

Phoenix Diagnostic Clinic
 • Bone infection
 • Diagnostic and therapeutic challenge
  – infectionist
  – orthopaedic
  – surgeon
  – radiologist
 • Staphylococcus aureus, Mycobacterium tuberculosis
 • Early and specific diagnostic – best results MR – high diagnostic accuracy (ca. 90%)

Osteomyelitis Pathology - MRI

1. Medullar inflammation
 • edema
 • leukocytes infiltration
 • purulent transformation
2. Abscess Brodie (chronic evolution)
3. Infection spread to the cortical
 • periostitis
 • soft-tissue
 • fistula
4. Sequestration
 • chronic form with overproduction of bone

Osteomyelitis MRI Findings
Pubian acute osteomyelitis
Pubian acute osteomyelitis, arthritis and pyomyositis
• marrow signal changes: hipo T1, hyper STIR, contrast enhanced (Se 98%, Sp 75%)
• the morphologic appearance depending on:
– location,
– mechanism,
– duration of infection
• uncomplicated septic arthritis may cause signal intensity changes in adjacent bone marrow (edema, hyperemia)
• a variety of noninfectious diseases may exactly mimic the signal changes and morphologic appearance of actively infected bone.
Erdman WA. Radiology 1991.

Chronic osteomyelitis with bone abscess. Arthritis.
Chronic osteomyelitis with bone abscess

 Chronic ostemyelitis, sinus tract

Chronic ostemyelitis, sinus tract

 M, 35 y. Chronic ostoemyelitis after tibial spine fractures with bone abscess and sinus tract.
Chronic ostoemyelitis with bone abscess
Chronic ostoemyelitis with bone abscess
Chronic ostoemyelitis with bone abscessChronic ostoemyelitis with bone abscess

November 4, 2009

Phoenix Diagnostic Clinic, Bucharest

This site is primarily intended for use by qualified medical or sport professionals.
If you are a consumer, you should evaluate the information together with your physician or other qualified healthcare professional.
The information provided here is for educational and informational purposes only and should not be considered as a medical advice.
As medical and sport science is permanently changing, we (authors and publishers) use our best efforts to provide accurate information, but we can not warrant that the information in this article and web site is accurate, complete or up-to-date.
This article reflects the opinions and judgments of it's author and may be further updated.
If you have questions regarding this article, please contact the author.
Information belongs to Phoenix Diagnostic Clinic, Bucharest

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