• Carolina Oldoni, Djanira Aparecida da Luz Veronez, Guilherme Santos Piedade, Emanuel Cassou Dos Santos, Daniel Benzecry de Almeida, and Meneses Murilo Sousa de MS Neurologic Institute of Curitiba, Curitiba, Paraná, Brazil. Electronic address: murilomeneses@gmail.com..
• Department of Anatomy, Federal University of Paraná, Curitiba, Paraná, Brazil.
• World Neurosurg. 2018 Oct 1; 118: e223-e228.

BackgroundThere is a need to further anatomically describe the nucleus accumbens (NA), as there is a growing neurosurgical interest in this locus but a limited understanding of its structure. In this study, we evaluated quantitative NA parameters and spatial relationships with adjacent structures found in the telencephalon.MethodsA total of 155 NA specimens from coronal sections and 3 NA specimens from transverse sections were stained using the Mulligan technique as modified by Barnard et al. The distance from the NA to other structures was then measured.ResultsThe mean radius of the 155 NAs in the coronal sections was 6.23 ± 0.964 mm, averaging 8.99 ± 2.02 mm from midline (coordinate x), 27.09 ± 3.15 mm from the insula, 12.95 ± 3.21 mm from the outer border of the putamen, 10.52 ± 2.66 mm from the upper border of the caudate, and 8.84 ± 2.93 mm from the midline of the lateral ventricle. The mean distance from the NA center of gravity to the middle of the intercommissural line parallel to the midline (coordinate y) was 17.08 ±3.61 mm, and the mean vertical distance from the intercommissural line to the NA was 8.12 ± 1.265 mm.ConclusionsWe obtained the stereotactic coordinates of (x, y, z) = (8, 17, -8) for the NA. From this and other delineations of the described position of the NA, it is possible to contribute to stereotactic surgical atlases, improving neurosurgical interventions in this structure.Copyright © 2018 Elsevier Inc. All rights reserved.

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