[Aneurysm of the vertebral artery as a tumor of the neck].

The authors described a case of vertebral artery aneurysm, basing on their own experience and literature. The clinical course, diagnostic difficulties and treatment were discussed. There is presented an aneurysm of the vertebral artery coexistent with rheumatoid cervical spine disease. Diagnosis must be planned in a very detailed way; biopsy should not be used. CT with angiography is best. The treatment is resection of the aneurysm or clipping vessels or occlusion by balloon in special cases.