鞍内动脉瘤常可酷似垂体腺瘤,而也可偶见垂体腺瘤同时并发鞍内动脉瘤.作者遇1例垂体瘤并发动脉瘤病例,并首次进行了尸检及病理学检查.病例报告:56岁男性,患有糖尿病,因持续癫痫大发作、神志不清入急诊室.9年前先后作动脉瘤修补术和垂体腺瘤切除术,术后恢复良好.本次入院后第6天死于感染性休克.尸检:大体所见为蝶鞍扩大并充满淡黄色、部分坏死的垂体瘤;具有广泛、陈旧性蛛网膜下腔出血,在颅底软脑膜最为明显;脑底部颈内动脉之间有一巨大肿块,与下面脑实质紧密粘连.脑冠状切面见肿块为一个巨大、多房性动脉瘤,部分充满凝血块,动脉瘤起源于右侧颈内动脉床突上段,并压 Intracranial aneurysms often resemble pituitary adenomas, but also occasionally pituitary adenomas concurrently with intrasellar aneurysms. The author encountered a case of pituitary aneurysm complicated with aneurysms, and the first autopsy and pathological examination. Case report: A 56-year-old man with diabetes mellitus who suffered from epileptic seizures and confusion into the emergency room. He had aneurysm repair and pituitary adenoma resection nine years ago and recovered well after surgery. He died on the 6th day after admission. In septic shock. Autopsy: General view of the sella expanded and filled with pale yellow, partially necrotic pituitary tumors; with extensive, old subarachnoid hemorrhage, the most obvious in the skull pial; brain internal carotid artery There is a huge mass between them, which is closely associated with the underlying brain parenchyma. The coronal view shows the mass as a large, multilocular aneurysm partially filled with blood clots. The aneurysm originates from the upper segment of the right internal carotid artery and compresses it.