Transcallosal approach for a giant third ventricle craniopharyngioma: illustrative case
- 1Department of Neurosurgery, The Jikei University School of Medicine, Minato-ku, Tokyo; and
- 2Department of Neurosurgery, Kameda Medical Center, Kamogawa, Chiba, Japan
Abstract
Giant third ventricle craniopharyngiomas pose surgical challenges due to their deep location and critical neurovascular relationships. A 22-year-old woman presented with headache, bitemporal hemianopia, and memory impairment from a giant multicystic craniopharyngioma extending from the third ventricle into the left lateral ventricle with obstructive hydrocephalus. Using GRID 3D simulation, the authors compared four corridors; a transcallosal transforaminal approach was selected based on the enlarged foramen of Monro and medially displaced fornix. Gross-total resection was achieved, with marked visual and memory recovery and return to work. Patient-specific 3D simulation enables objective approach selection. The transcallosal route is effective for retrochiasmatic third ventricle craniopharyngiomas with hydrocephalus.
The video can be found here: https://stream.cadmore.media/r10.3171/2026.7.FOCVID2686
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BibTeX
@article{yamashiro2026transcallosal,
title = {{Transcallosal approach for a giant third ventricle craniopharyngioma: illustrative case}},
author = {Kyohei Yamashiro and Kentaro Watanabe and Nobuyuki Watanabe and Ryo Ishikawa and Yumi Matsuzawa and Kyoichi Tomoto and Kohei Ishikawa and Michihiro Tanaka and Yuichi Murayama},
journal = {Neurosurgical Focus: Video},
year = {2026},
month = oct,
doi = {10.3171/2026.7.focvid2686},
url = {https://doi.org/10.3171/2026.7.focvid2686},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Transcallosal approach for a giant third ventricle craniopharyngioma: illustrative case
AU - Kyohei Yamashiro
AU - Kentaro Watanabe
AU - Nobuyuki Watanabe
AU - Ryo Ishikawa
AU - Yumi Matsuzawa
AU - Kyoichi Tomoto
AU - Kohei Ishikawa
AU - Michihiro Tanaka
AU - Yuichi Murayama
PY - 2026
DA - 2026/10/01
JO - Neurosurgical Focus: Video
DO - 10.3171/2026.7.focvid2686
UR - https://doi.org/10.3171/2026.7.focvid2686
AB - Giant third ventricle craniopharyngiomas pose surgical challenges due to their deep location and critical neurovascular relationships. A 22-year-old woman presented with headache, bitemporal hemianopia, and memory impairment from a giant multicystic craniopharyngioma extending from the third ventricle into the left lateral ventricle with obstructive hydrocephalus. Using GRID 3D simulation, the authors compared four corridors; a transcallosal transforaminal approach was selected based on the enlarged foramen of Monro and medially displaced fornix. Gross-total resection was achieved, with marked visual and memory recovery and return to work. Patient-specific 3D simulation enables objective approach selection. The transcallosal route is effective for retrochiasmatic third ventricle craniopharyngiomas with hydrocephalus. The video can be found here: https://stream.cadmore.media/r10.3171/2026.7.FOCVID2686
SN - 2643-5217
ER -