Sulcal FLAIR hyperintensity - Finding beyond meningitis

Authors

DOI:

https://doi.org/10.3126/njn.v18i3.36326

Keywords:

cerebrospinal fluid, FLAIR, Ivy sign, Meningitis, MRI, sulcal FLAIR hyperintensity

Abstract

Introduction: The aim of this study was to enumerate the causes of Fluid-attenuated inversion recovery (FLAIR) hyperintensity in the sulcal space which could be due to cerebrospinal fluid (CSF) or non-CSF related pathologies.

Methods and Materials: This is an observational retrospective study done in 100 patients in the department of Radio-diagnosis of Patna Medical College and Hospital, Patna from September 2019 to September 2020.

Results: The mean age of patients was 40.13 +/- 13.88 years (Range 19 to 75 years). Male to female ratio was 1.32:1.00 (57:43). The most common cause of FLAIR sulcal hyperintensity was infection in 66% cases followed by meningeal tumor deposits in 16%, vascular cause in 6%, subarachnoid hemorrhage in 5%, mass effect in 5%, dermoid rupture in 1% and hyperoxygenation in 1%.

Conclusion: Presence of sulcal hyperintensity on FLAIR images is a very strong sign to an underlying brain pathology. A keen observation of the same on FLAIR sequence in association with other findings can increase diagnostic confidence and thus lead to better patient care.

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Author Biographies

Aishwerya Singh, Patna Medical College and Hospital, Patna, Bihar, India

Senior resident, Department od radiology, PMCH, Patna

Sweta Krishnan, Patna Medical College and Hospital, Patna, Bihar, India

Junior resident, Department of Radiology, PMCH, Patna

Ruchi Gupta, Indira Gandhi institute of medical sciences, Patna

Assistant professor, department of radiology, IGIMS, Patna

Samiullah Hasan, Indira Gandhi institute of medical sciences, Patna

senior resident, department of radiology, IGIMS, Patna

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Published

2021-09-01

How to Cite

Singh, A., Krishnan, S., Gupta, R., & Hasan, S. (2021). Sulcal FLAIR hyperintensity - Finding beyond meningitis. Nepal Journal of Neuroscience, 18(3), 20–27. https://doi.org/10.3126/njn.v18i3.36326

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Original Articles