A Case of Recurrent Expansile Cyst Formation after Gamma Knife Radiosurgery for a Cerebral Arteriovenous Malformation: Role of the Residual Nidus: Case Report.
- Author:
Won Kil BOK
1
;
Kyung Soo MIN
;
Mou Seop LEE
;
Yang KWON
Author Information
1. Department of Neurosurgery, College of Medicine, Chungbuk National University, Cheongju, Korea.
- Publication Type:Case Report
- Keywords:
Areteriovenous malformation;
Gamma knife radiosurgery;
Cyst;
Residual nidus
- MeSH:
Adult;
Aphasia;
Arteriovenous Malformations;
Cerebral Angiography;
Drainage;
Headache;
Humans;
Intracranial Arteriovenous Malformations*;
Male;
Paresis;
Parietal Lobe;
Radiosurgery*;
Recurrence;
Seizures
- From:Journal of Korean Neurosurgical Society
2003;33(1):76-80
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The authors report a case of recurrent expansile cyst formation after gamma knife radiosurgery(GKRS) for a cerebral arteriovenous malformation where the residual nidus might play an important role. A 28-year-old male patient underwent gamma knife radiosurgery for a left parietal lobe arteriovenous malformation which had manifested with generalized tonic-clonic seizure in November 1992. In March 1999, 76 months after GKRS, the patient presented with headache, dysphasia and right hemiparesis and the computed tomography(CT) and magnetic resonance(MR) image revealed a huge cystic lesion with enhancing nodule at the anterior wall of the cyst. Cerebral angiography showed a small residual nidus. Aspiration and drainage of the cystic fluid via a burr hole was performed and the symptoms improved. One year later, in March 2000, the symptoms recurred, and CT and MR image revealed a new huge cystic lesion anterior to the enhancing nodule. Surgical removal of the residual nidus was performed, and there is no recurrence of the cyst for two years till now.
