Indocyanine green-assisted endoscopic endonasal resection of an olfactory groove meningioma with vascular involvement.

ABSTRACT:

Background

Olfactory groove meningiomas are complex anterior skull base tumors representing approximately 10% of intracranial meningiomas. These tumors may involve critical structures, including the frontal lobes, optic nerves, and anterior cerebral arteries. The endoscopic endonasal approach offers direct access to the tumor, enabling early devascularization and optic canal decompression while minimizing brain retraction. However, lateral extension into the optic canals and vascular involvement remain major challenges requiring careful intraoperative management. Intraoperative indocyanine green (ICG) angiography is a valuable adjunct to safely navigate tumors involving vascular structures.

Case description

We present the case of a 52-year-old female with a large olfactory g

SUBMITTER: Gago G 

PROVIDER: S-EPMC12482750 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature