• Prakash Rao Gollapudi, Imran Mohammed, Sandeep R Pittala, Arjun Reddy Kotha, Naga Raju Reddycherla, and Dhanunjaya Rao Ginjupally.
• Department of Neurosurgery, Gandhi Medical College, Secunderabad, India.
• World Neurosurg. 2018 Apr 1; 112: 14-17.

IntroductionFluorescein sodium is one of the fluorophores that is used in the resection of intracranial lesions. It is commonly used along with a customized microscope, which is expensive and not available universally. In this study, we describe a simple, inexpensive method for better visualization of intracranial and spinal cord lesions with fluorescein.Materials And MethodsAfter a test dose, 20 mg/kg of fluorescein sodium was administered intravenously at the time of intubation. A blue light source was used before resection for precise localization of the intracranial lesions after durotomy. Most of the resection was done under the white light, while the blue light was used intermittently to delineate the pathologic tissue from the normal tissue and to ensure safe maximal resection. The intensity of fluorescein staining under white light and blue light was noted.ResultsThe study comprised 40 cases of gliomas, meningiomas, abscesses, spinal cord tumors, and cerebellopontine angle lesions. Thirty-five lesions showed good fluorescence under the blue light, which helped us achieve better resection of the pathologic lesions.ConclusionsFluorescein sodium is a safe dye; it can be used to aid in precise localization and safe maximal resection of the pathologic tissue with the help of a blue light source at any center with challenged resources. The blue light enhances the fluorescence and visualization of the pathologic tissue, and this technique can be adopted by any surgeon without much difficulty even with a basic neurosurgical setup.Copyright © 2018 Elsevier Inc. All rights reserved.

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