Incidental finding

Abnormality discovered during an investigation that is not necessarily related to the symptoms prompting it.

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An unexpected finding during an examination

An incidental finding is discovered during a test requested for another question. In the spine, degenerative changes may be visible without corresponding symptoms. Incidental does not always mean unimportant; some unexpected findings deserve their own follow-up.

The clinician checks whether the abnormality matches the side, level, examination and history. Findings that may explain the current problem are distinguished from those needing independent surveillance. Comparison with older images or a radiologist's opinion can help. Automatically ordering more tests can also create anxiety and unnecessary interventions. The decision should explain what is known, what remains uncertain and what action is justified. A patient should not be left to interpret an unfamiliar imaging term as either a catastrophe or something safe to ignore.

Indications and interpretation

Before ordering the test, the clinician should identify the question it needs to answer and how the result could change decisions. Routine imaging for low back pain without warning signs does not necessarily improve care. A result describes structures; it does not measure all aspects of pain or a person's capacity to recover. Age, previous conditions, the affected side and the physical examination help distinguish a relevant abnormality from an incidental finding. More visible detail is useful only when interpreted appropriately.

After the results

The responsible clinician should explain which findings need action, follow-up or no particular intervention. Bringing previous studies can prevent unnecessary repetition. At TAGMED, imaging can help select or exclude particular care options; it cannot establish that traction, laser treatment or manual care will work. Decisions remain clinical and must consider contraindications. Progressive weakness, altered saddle sensation or a new inability to urinate must not wait for a routine imaging appointment: these symptoms need emergency assessment. Follow the preparation and safety instructions supplied by the imaging centre. Ask how and when results will be communicated rather than assuming that silence means everything was normal.

Frequently asked questions

Does incidental mean benign?

Not necessarily. It describes how the finding was discovered rather than its nature.

Does an abnormality necessarily explain pain?

No. Agreement with symptoms and examination findings must be checked.

Should previous results be brought?

Yes when available; comparison may prevent unnecessary repeat studies.

Who explains the report?

The responsible clinician interprets it within the whole clinical picture.

Does the test determine treatment?

It contributes to decisions but does not replace clinical assessment and discussion of options.

Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 12, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.