Probable pathogenesis, diagnosis, and management of untreated arteriovenous malformation with cyst formation: case report and literature review

In conclusion, an untreated AVM with associated cyst formation is extremely rare, and the mechanism of formation is unclear. We propose a probable pathogenesis. Preoperative diagnosis, intraoperative management, and postoperative follow-up are equally crucial in dealing with this extremely rare condition. Cystic tumors associated with arteriovenous malformations (AVMs) are uncommon and a re usually a complication of stereotactic radiosurgery (Ilyas et al. in J Neurosurg.https://doi.org/10.3171/2016.12.JNS162478, 2017) or form after a hemorrhage (Daniels et al. in Radiology 133:393 –394, 1979). Untreated AVMs with large cysts or cystic tumors are rare, with only five cases reported in the literature (Table 1). Here, we present a case of an untreated AVM associated with cystic formation, or a cystic tumor, in the left frontal lobe.
Source: Acta Neurologica Belgica - Category: Neurology Source Type: research