Menno R Germans1, Zsolt Kulcsar2, Luca Regli3, Oliver Bozinov3. 1. Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland; Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland. Electronic address: mrgermans@hotmail.com. 2. Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland; Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland. 3. Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland; Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland.
Abstract
BACKGROUND: Arteries that anastomose with the posterior inferior cerebellar artery (PICA) can harbor aneurysms. CASE DESCRIPTION: We present a case of a patient who suffered a subarachnoid hemorrhage as a result from an aneurysm on the left lateral spinal artery (LSA) that anastomosed to the PICA. The aneurysm was treated surgically, and the flow between the LSA and PICA was disrupted. The activated anastomotic network created a new anastomosis between the LSA and PICA, which was seen at 6 months' follow-up. CONCLUSIONS: Careful follow-up is warranted in patients who have an activated anastomotic network because they can potentially develop aneurysms on newly created anastomoses.
BACKGROUND: Arteries that anastomose with the posterior inferior cerebellar artery (PICA) can harbor aneurysms. CASE DESCRIPTION: We present a case of a patient who suffered a subarachnoid hemorrhage as a result from an aneurysm on the left lateral spinal artery (LSA) that anastomosed to the PICA. The aneurysm was treated surgically, and the flow between the LSA and PICA was disrupted. The activated anastomotic network created a new anastomosis between the LSA and PICA, which was seen at 6 months' follow-up. CONCLUSIONS: Careful follow-up is warranted in patients who have an activated anastomotic network because they can potentially develop aneurysms on newly created anastomoses.