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It means either bone from the vertebra(s) is growing into the spinal canal. This would be caused by spondylosis, or in English, Arthritis of the spine... The spinal canal runs down a passage made by the vertebrae and surrounding bony "arches". These arches have a part that 'sticks out' called the spinous process, and these are the "bumps" that you can feel when you run your fingers down someone's back. Here's a web address you can copy & paste into your browser to see what I'm talking about: http://images.Google.com/images?hl=en&q=spinal+canal,+picture&um=1&ie=UTF-8 Hope this helps!

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Q: What is central canal encroachment mean?
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Longitudinal canal carrying blood vessels and nerves?

The central, or Haversian, canal. The canal runs through the core of each osteon.


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Panama Canal


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The Panama Canal.


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No, the Panama Canal is in Central America.


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Haversian canal & Central Canal


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There is not a listed name for the Indiana Central Canal. This canal is eight miles long and another 80 miles are still awaiting completion.


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What its encroachment of the right and left foramina?

It's basically compression of your spine by the surrounding canal in the specific area your doctor is speaking of. Foramina, in this case, are the spaces in between your vertebrae. Encroachment is squeezing or compression of those spaces. I have bilateral bony foraminal encroachment of some of the disc spaces of my C spine. It doesn't normally bother me at all, though.


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