2021 Volume 6 Issue 2 Pages 103-108
Objective: We describe a case of partially thrombosed aneurysm of distal superior cerebellar artery (SCA)treated with stent-assisted coil embolization (SACE).
Case Presentation: A 74-year-old woman presented with frequent vomit caused by mass effect associated with unruptured partially thrombosed aneurysm, gradually enlarged, arising from the distal SCA. MRI demonstrated that this thrombosed aneurysm compressed the brainstem and cerebellum. We performed SACE to expect the mass reduction by flow-diversion effect and to preserve the parent artery. After the operation, her symptom had gradually dissolved. Postoperative serial MRIs revealed that the size of the aneurysm had gradually decreased. On MRI 20 months after SACE, the aneurysm could also keep the reduction of the size with disappearance of the contrast enhancement. Follow-up angiography performed 2 years after the SACE showed a small area of contrast stasis within the aneurysm.
Conclusion: SACE for the partially thrombosed SCA aneurysm can be performed safely. Stent-assisted coil embolization might be one of the options to treat the thrombosed SCA aneurysm; however, more long-term follow-up is required.
