Facet nerve anatomy . This could be a normal position for the nerve to be. As the nerve exits the spinal canal, it courses under the facet joint. If leg pain is present (sciatica), the facet joint may be degenerated and pressing on the nerve. At your age, facet hypertrophy or enlargement is not common. Enlargement is usually in older individuals.
Depends. It is not really a full description of what sounds like a radiologists reading of an MRI report. The s1nerve root exits out of the spine through the neural foramen next to the l5-s1 facet. I suspect the radiologist is desribing an area of stenosis in that area. A simple way to describe that finding is to say you have a pinched nerve in your back. Thank you for your question.