Giant anterior communicating artery aneurysm with intrasellar extension

IntroductionAneurysms extending into the sella are uncommon with only a few cases reported till date. Most of these arise from either the supraclinoidal or infraclinoidal segments of the internal carotid artery.Research questionCan Anterior communication artery aneurysm present with hypopituitarism due to compression of pituitary gland?Materials & methodsCase report and literature review.ResultsWe discuss this rare presentation in a middle-aged patient its surgical management and the follow-up course with a review of available literature.Discussion & conclusionAnterior communicating artery aneurysms extending into the sella are extremely uncommon with only 4 cases reported in literature. They are usually giant aneurysms which are partially thrombosed with presenting with predominantly with mass effect in this case visual impairment and hypofunction of the pituitary.