Related Experiment Video
Updated: May 29, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Intracranial hemorrhage from undetected aneurysmal rupture complicating transphenoidal pituitary adenoma resection
Tarun Rustagi1, Edilfavia Mae Uy, Mridula Rai
1Department of Internal Medicine, University of Connecticut Health Center, Farmington, CT 06032, USA. trustagi@resident.uchc.edu
Abstract:
We report a case of a 39-year-old man who presented with a nonfunctioning pituitary macroadenoma which extended into the suprasellar region. He underwent a transcranial resection of the tumor followed eight months later by transsphenoidal surgery for the residual tumor. Postoperatively he developed massive subarachnoid and intraventricular hemorrhage. A cerebral angiogram revealed a leaking anterior communicating artery aneurysm which was not seen on the computed tomography angiography and magnetic resonance angiography before the surgery. Complications of transsphenoidal surgery, particularly vascular hemorrhagic complications, and risk of rupture of undetected aneurysms are discussed.
Related Concept Videos
Increased Intracranial Pressure ll: Pathophysiology
Hemorrhagic Stroke ll: Pathophysiology
Increased Intracranial Pressure l: Introduction
Hemorrhagic Stroke l: Introduction
Cerebral Edema ll: Pathophysiology
Aneurysm III: Interprofessional Care

