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MRI · L5-S1 disc level

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Result summary

3 findings in this reading

Severity reflects the AI reading's own wording — it is not a diagnosis, and not your radiologist's opinion.

New or worsening symptoms? Contact your doctor promptly, whatever this summary says.

Findings

  • L5-S1 disc level

    high confidence
    Needs attention

    The L5-S1 intervertebral disc shows mild loss of T2 signal intensity and mild height reduction compared to the upper lumbar discs, indicating early degenerative disc disease without significant posterior herniation or canal stenosis.

  • S2 sacral canal

    high confidence
    Needs attention

    There is a well-defined, rounded lesion within the sacral canal at the S2 level that is hyperintense on T2-weighted images (clearest on slice P1) and matches cerebrospinal fluid signal intensity, consistent with a perineural (Tarlov) cyst. This is the most significant finding of this series because it represents a focal space-occupying lesion within the spinal canal that can exert mass effect on adjacent sacral nerve roots, outranking the mild degenerative disc changes seen at other levels.

  • No abnormality seen

    high confidence · not localized
    Normal

    On these slices, no abnormality was seen in: the alignment of the lumbar vertebral bodies, the conus medullaris, the cauda equina fibers, the prevertebral soft tissues, or the posterior elements of the lumbar spine.

Read Your Scan

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Read Your Scan

AI scan explanation service

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Issued: 2026-10-02

Patient:
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Exam no.:
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Archive:
9DFA2728
Exam date:
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Examination:
MRI

This document was generated by artificial intelligence from the scan images. It is an explanatory aid, NOT a diagnosis and NOT a substitute for a radiologist report. Always discuss it with your doctor.

MRI

Whole-exam read: 2 of 2 series, 2 representative slices in total.

Findings

  • 1.The L5-S1 disc the lowest disc of the lumbar spine, shows a mild loss of its normal bright T2 signal and is slightly reduced in height compared with the discs above it. Changes like these are often described as early 'wear and tear' of the disc. On these images no significant bulging toward the back of the canal and no narrowing of the canal was seen. All independent readings of these images agreed on this.
  • 2.The sacral canal at S2 one reading described a small, well-defined, rounded spot low in the spinal canal that was bright on T2 images and matched the signal of spinal fluid — a pattern that can be seen with a fluid-filled sac around a nerve, sometimes called a perineural or Tarlov cyst. Such a spot can, in some people, press on nearby nerve roots. It is important to know that two other readings of the same images did not mention this at all, so it is something one reading raised rather than an established finding, and it would need to be confirmed by your radiologist.
  • 3.The reading also looked at the line-up of the lumbar vertebrae, the lower end of the spinal cord (conus medullaris), the bundle of nerve fibres below it (cauda equina), the soft tissues in front of the spine, and the bony parts at the back of the lumbar spine — and did not see an abnormality in any of these on these slices. This means the reading looked and did not see something there; it is not the same as a clean bill of health, and all independent readings agreed on this.

Impression

In short, these two images mainly show mild early wear at the lowest lumbar disc, plus a possible small fluid spot near S2 that only one reading noticed — and because this is just two slices, your full report and your doctor are needed to make sense of it all.

The overall picture mainly shows mild early degenerative (wear-type) change at the lowest lumbar disc, which all readings agreed on. A possible small fluid spot near the S2 level of the sacral canal was noted by one reading only and not by the others, so it is uncertain and would need your radiologist's confirmation. This study is only two images, so it cannot exclude what other slices or angles might show, and it is not able on its own to confirm or rule out conditions like spondyloarthritis or rheumatoid arthritis — your full report and your doctor's review will give the complete picture.

Produced by

Read Your Scan

Automatically generated document — no physician signature.

For the patient

Questions for your doctor

  • 1.The S2 spot one reading described a possible small fluid-filled cyst near S2 — can you tell from the full scan whether this is really there, and if so, whether it matters?
  • 2.The L5-S1 disc change could the mild wear seen at my lowest lumbar disc be contributing to my lower back pain?
  • 3.The limited images does the full set of images (beyond these two) change anything, and does it cover everything you needed to see?
  • 4.The reason for the scan does this study help rule in or out spondyloarthritis or rheumatoid arthritis, or are other tests still needed?
  • 5.My wider symptoms given my long-term pain and the connective-tissue assessment I'm going through, which specialist should pull these findings together for me?

This is an automated, informational explanation of your imaging — not a medical diagnosis, and not a substitute for a licensed radiologist or your doctor. If you have urgent symptoms, seek medical care.

Document generated automatically by artificial intelligence. It carries no medical-legal value, is not signed by a physician and does not replace the radiology report issued by the facility that performed the exam.

Document no.: 9DFA2728 · Issued: 2026-10-02 14:49 UTC

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