Large Pitutiary tumor removal. Bilateral Nasoseptal Flap Reconstruction, Sub frontal extension, Bilateral Hemianopsia, visual loss, visual field testing, B. Todd Schaeffer, MD, Ricky Madhok, MD, North Shore LIJ Health System, Skull base surgery, ENT & Allergy Associates, LLP, North Shore Skull Base Center, CSF LEAK, PituitaryMD.com, NOSEMD