We report a case of an unruptured intracranial aneurysm in paraclinoidal location which was a unmasked by severe panhypopituitarism. An ipsilateral internal carotid artery (ICA) clamp test was performed in the pretreatment stage. The test was well tolerated and the aneurysm could be embolized with GDC (Guglielmi detachable coils) without necessitating an occlusion of the ICA. The postoperative course was uneventful and the patient was discharged after 48 hours. At one year, cerebral angiograms confirmed complete obliteration of the aneurysm. Therapeutic management of this rare entity is discussed along with a careful and exhaustive review of the literature.