Department of Neurosurgery, Cardiocerebrovascular Center, Kyungpook National University, Daegu, Republic of Korea.
J Neurosurg. 2013 Jul;119(1):243-6. doi: 10.3171/2013.3.JNS122058. Epub 2013 Apr 19.
Because infundibular widening most commonly appears at the origins of the posterior communicating artery and anterior choroidal artery from the internal carotid artery, its occurrence in association with the anterior communicating artery (ACoA) or the A1-A2 junction can be misinterpreted as an ACoA aneurysm on angiograms. The authors report on 2 such cases; one in a 73-year-old woman with infundibular widening of the recurrent artery of Heubner, and the other in a 44-year-old woman with infundibular widening of a perforating vessel from the ACoA. The correct diagnosis was established based on surgical exploration. In addition, grayscale modification of 3D reconstruction images of preoperative digital subtraction angiography revealed the cases of the recurrent artery of Heubner and perforating artery of the ACoA arising from the apex of the infundibular widening.
因为漏斗部增宽最常出现在颈内动脉发出后交通动脉和脉络膜前动脉的起始处，所以它出现在前交通动脉（ACoA）或 A1-A2 交界处时，可能会被误诊为 ACoA 动脉瘤。作者报告了 2 例这样的病例；一例发生在 73 岁女性，为 Heubner 返动脉的漏斗部增宽，另一例发生在 44 岁女性，为 ACoA 的穿通支血管的漏斗部增宽。根据手术探查，做出了正确的诊断。此外，术前数字减影血管造影三维重建图像的灰度修正显示，Heubner 返动脉和 ACoA 穿通支血管起源于漏斗部增宽的顶点。
