Podcast
Questions and Answers
Medullary osteonecrosis is always caused by a fracture.
Medullary osteonecrosis is always caused by a fracture.
False
On MRI, the serpiginous border of medullary osteonecrosis displays a low signal on T2-weighted images.
On MRI, the serpiginous border of medullary osteonecrosis displays a low signal on T2-weighted images.
False
The presence of a lucent area with a sclerotic serpiginous border is seen in medullary osteoporosis.
The presence of a lucent area with a sclerotic serpiginous border is seen in medullary osteoporosis.
True
The characteristics of normal fatty marrow are retained centrally within the infarction area of medullary osteonecrosis.
The characteristics of normal fatty marrow are retained centrally within the infarction area of medullary osteonecrosis.
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The double-line sign on T2-weighted MRI images is associated with medullary osteonecrosis.
The double-line sign on T2-weighted MRI images is associated with medullary osteonecrosis.
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Study Notes
Medullary Osteonecrosis
- Secondary to vascular compromise.
- Leads to severe architectural loss, functional loss, and pain.
- Important diagnosis.
- Plain film shows lucent area with sclerotic, serpiginous border of granulation tissue.
- MRI reveals:
- Low T1 signal from serpiginous border.
- "Double-line" sign on T2 (high signal granulation tissue surrounded by low signal sclerosis).
- Normal fatty marrow signal within the central infarction.
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Description
Test your knowledge on Medullary Osteonecrosis with this quiz. Explore key points including diagnosis, imaging findings, and implications of vascular compromise. Ideal for medical students and professionals, this quiz highlights the significance of recognizing this condition promptly.
