Abstract
Purpose
The neuroimaging diagnosis of diffuse gliomas can be challenging owing to their variable clinical and radiologic presentation. The purpose of this study was to identify factors that are associated with imaging errors in the diagnosis of diffuse gliomas.
Methods
A retrospective case–control analysis was undertaken. 18 misdiagnosed diffuse gliomas on initial neuroimaging (cases) and 108 accurately diagnosed diffuse gliomas on initial neuroimaging (controls) were collected. Clinical, pathological, and imaging metrics were tabulated for each patient. The tabulated metrics were compared between cases and controls to determine factors associated with misdiagnosis.
Results
Cases of misdiagnosed diffuse glioma (vs controls) were more likely to undergo initial triage as a stroke workup [OR 14.429 (95% CI 4.345, 47.915), p < 0.0001], were less likely to enhance [OR 0.283 (95% CI 0.098, 0.812), p = 0.02], were smaller (mean diameter 4.4 vs 6.0 cm, p = 0.0008), produced less midline shift (median midline shift 0.0 vs 2.0 mm, p = 0.003), were less likely to demonstrate necrosis [OR 0.156 (95% CI 0.034–0.713), p = 0.008], and were less likely to have IV contrast administered on the initial MRI [OR 0.100 (95% CI 0.020, 0.494), p = 0.008].
Conclusion
Several clinical and radiologic metrics are associated with diffuse gliomas that are missed or misdiagnosed on the initial neuroimaging study. Knowledge of these associations may aid in avoiding misinterpretation and accurately diagnosing such cases in clinical practice.
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Abbreviations
- IDH:
-
Isocitrate dehydrogenase
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional committee and 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Maldonado, M.D., Batchala, P., Ornan, D. et al. Features of diffuse gliomas that are misdiagnosed on initial neuroimaging: a case control study. J Neurooncol 140, 107–113 (2018). https://doi.org/10.1007/s11060-018-2939-9
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DOI: https://doi.org/10.1007/s11060-018-2939-9