Extraspinal abnormalities detected on MR images of the spine.

Olson, Erik M.; Wong, WY; Hesselink, John R.

doi:10.2214/ajr.162.3.8109521

Cited by 5 publications

(2 citation statements)

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“…As mentioned above, some studies related to incidental findings on MRI have already been performed and published [10, 15–17, 19, 21]. If we again perform a similar retrospective study in our hospital with similar numbers of patients, it is probable to get results close to those of the present study, although some different, minor results may also be obtained.…”

Section: Discussionsupporting

confidence: 75%

“…To our knowledge, in most institutes the patients are infrequently referred for thoracic spinal MRI examinations for the imaging of intervertebral discs, which is also true for our institute. Although we expected to find thoracic incidental extraspinal findings such as the ones reported in literature, including masses, pleural effusion, fibrous dysplasia and lymphadenopathy, we found two inferior pole thyroid nodules [19]. Incidental extraspinal pathologies and congenital anomalies/anatomic variations are more frequent on MRI of the lumbar region because liver, ovaries, uterus, kidneys, and vascular structures are located in this region [17].…”

Section: Discussionmentioning

confidence: 90%

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Incidental extraspinal findings on magnetic resonance imaging of intervertebral discs

Dilli¹,

Ayaz²,

Turanlı³

et al. 2014

aoms

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IntroductionWe aimed to evaluate pathological extraspinal findings and congenital anomalies/anatomical variations that were incidentally detected on the magnetic resonance imaging (MRI) scans of intervertebral discs, to find the frequencies of these incidental findings, and to emphasise the clinical importance of them.Material and methodsA retrospective study including 1031 consecutive patients (730 females and 301 males, with a median age of 46 years) was conducted by evaluating a total of 1106 MRI examinations of intervertebral discs. Examinations were performed with a 1.5 T MRI unit. Incidental findings were classified as pathological findings and congenital anomalies/anatomical variations.ResultsThe percentages of incidental extraspinal pathological findings and congenital anomalies/anatomical variations were 16.6% (95% confidence interval (CI): 14.4–18.8) and 3.7% (95% CI: 2.6–4.3), respectively. The percentage of incidental extraspinal pathological findings on cervical spinal MRI was 25.7% (95% CI: 20.1–31.7), thyroid nodules being the most common incidental findings. On thoracic spinal MRI (n = 19), inferior pole thyroid nodules were demonstrated as incidental extraspinal pathological findings, with a percentage of 10.5% (95% CI: 9.6–11.5). On lumbar spinal MRI, incidental pathological findings were detected with a percentage of 14.2% (95% CI: 11.9–16.6), while the percentage of congenital anomalies/anatomical variations was 4.8% (95% CI: 3.4–6.3). Eventually, 6.5% (95% CI: 2.6–9.4) of all cases with incidental extraspinal pathological findings underwent surgery.ConclusionsOn MRI examination of intervertebral discs, paying attention to incidentally detected pathological extraspinal findings and congenital anomalies/anatomical variations is very important due to the fact that they can alter the treatment of the patient or affect the patient's life.

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