Objectives: literature review on giant cell tumors of the bone (GCTB) involving the anterior skull base and case report of endoscopic endonasal surgical treatment. Study Design: qualitative systematic review. Materials and Methods: PubMed, BMC and Cochrane Library database review, based on the PRISMA MODEL. Iconographic description with images of the transcribriform endoscopic approach. Results: 36 articles wer...