Occipital abscess developed after endovascular AVM treatment with liquid embolizing agent: case report

In arteriovenous malformations, endovascular embolization was first used in the 1960s to occlude feeding vessels. In recent years, the success of endovascular treatments has increased. Thus, the use of endovascular therapy in the treatment of arteriovenous malformation has become widespread. Recently, it is the primary treatment method or an adjunctive treatment to surgery. The development of intracranial abscess after endovascular treatment with a liquid embolizing agent has been reported very rarely in the literature. In this article, a case of intracerebral abscess that developed after endovascular treatment with a liquid embolizing agent was presented. A 24-year-old male patient was admitted to the hospital with the complaints of dizziness and syncope. Arteriovenous malformation was observed in radiological imaging. Endovascular treatment for the AVM was performed. He was admitted to the hospital with similar complaints 2 months after the treatment. An abscess was observed around the AVM in the patient's cranial imaging. Infected materials in the mall were surgically removed, and the abscess was drained. After antibiotic treatment, the patient was discharged with full recovery. Due to the recent popularity of endovascular treatment methods, the incidence of abscess formation after embolization may change in the near future. Further research should be done to prevent this serious complication.