Expanded Endoscopic Endonasal Transtuberculum Transchiasmatic Sulcus Approach for Resection of Germ Cell Tumor Post Chemoradiotherapy: Technical Nuances and Perforator Preservation

We present the case of a 16-year-old with pituitary gland failure and a large suprasellar nongerminomatous germ cell tumor initially treated with chemoradiotherapy. He had ongoing residual disease anatomically located in third ventricle and intimately related to pituitary stalk and basal thalamoperforators.