Endoscopic endonasal approach for resection of giant nonfunctional pituitary adenoma.

The giant pituitary adenoma (GPA)> 4 cm is considered a surgical challenging pathology and associated with higher surgical complications compared to non-giant pituitary adenoma [1]. These tumors are invasive and had extension to nearby neurovascular structures including cranial nerves and internal carotid artery. Endoscopic endonasal approach (EEA) is increasingly used in the last two decades, however tumors with significant height extension in the supraseller region makes surgeons in favor of transcranial approaches or combined approaches [2]. The accompanied symptoms arise from compression of neighboring structures as well as hypopituitarism [3]. In this video we present 65 year old male with PMH significant for HTN who presented with 2-3 months retro-orbital headaches, confusion, gait instability, urinary/fecal incontinence, found to have 5.1 × 2.1 × 2 cm sellaer-suprasellar mass compressing the floor of the third ventricle, mammillary body, and optic apparatus. The mass was associated with hydrocephalus. The endoscopic endonasal skull base approach (trans-sellar, transtubercular) was performed with significant tumor resection without a need for trans cranial approach. A titanium clips was used to reconstruct the diaphragma sella which was very helpful technique to change high flow CSF leak to low flow. The postoperative course of the patient was smooth with improved gait, memory, and vision. He was kept on a hormonal replacement for hypopituitarism.

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Conflict of interest The author reports no conflict of interest.