BackgroundPituitary adenomas (PAs) are the most common tumor of the sellar region. PA resection is the preferred treatment for patients with clear indications for surgery. Intraoperative cerebrospinal fluid (iCSF) leakage is a major complication of PA resection surgery. https://www.roneverhart.com/Calvin-Klein-CK21501-Eyeglasses-SOFT-TORTOISE-Clear-demo-lens/