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meaning of this M.R .I scane report

diffuse bulge with posterior and left paracentral protrusion as well as inferior migration,in to the left lateral resess involving L5-s1 disc causing left lateral recess, narrowing and identation of bilateral S1 nerve root, more severe on left side migrated
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replied July 24th, 2011
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abhi30,

I will ry to explain it in nonmedical english. It's taken a little out of context, but from what you have provided:

"diffuse bulge with posterior and left paracentral protrusion as well as inferior migration,in to the left lateral resess involving L5-s1 disc causing left lateral recess, narrowing and identation of bilateral S1 nerve root, more severe on left side migrated"

The area that this is speaking of is the disc between the L5 and S1 vertebrae. This disc has a diffuse bulge which goes straight back posteriorly (backwards towards the spinal canal), and also goes a little bit down, over the lip of the vertebral body. It also has an extension to the left side as it has bulged posteriorly. This left sided extension makes the lateral recess narrow (the lateral recess is the area through which the nerve root exits the spine). The S1 nerve root, which runs through this recess, is being indented (pressed upon). It seems that the bulge actually narrows both the left and right recesses, but the left one is the worst.

Hope that helps some. Good luck.
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