2025 Poster Presentations
P245: ONODI CELL DEHISCENCE:A RARE CAUSE OF OPHTHALMIC ARTERY INJURY IN ENDONASAL SURGERY
Rajesh Chhabra, Professor1; Apinderpreet Singh, MS, Mch2; 1PGIOMER; 2PGIMER
37-year-old male underwent trans-sphenoidal surgery for a pituitary macroadenoma. While pre-operative MR angiography was normal, CT revealed bilateral Onodi cells. During the procedure, an arterial bleed occurred near the right opticocarotid recess, controlled with compression. Post-operative imaging showed a right ophthalmic artery pseudoaneurysm, treated with coil embolization. The distal artery was perfused via external carotid perforators, and the patient’s vision was preserved. This case highlights the risk of vascular injury associated with anatomical variants.