Summary
The authors report on a rare case of arteriovenous malformation (AVM) associated with cyst formation. Only five similar cases have been reported. CT findings of the cyst are divided into two types: 1) slit-like low density and 2) round one. Three patients showing slit-like cysts had experienced sudden severe headaches, probably due to haemorrhage. In contrast, two patients showing round cystic lesions had not experienced such sudden headaches and they revealed a nodule in the cyst at surgery. These facts suggest that there may be two different mechanisms for cyst formation in AVM's: haemorrhage and exudation. Slit-like cysts may result from old haemorrhage from the AVM nidus. Round cystic lesions may be due to exudation from the AVM nidus.
Similar content being viewed by others
References
Boyd MC, Steinbok P, Paty D (1985) Familial arteriovenous malformation. Report of four cases in one family. J Neurosurg 62: 597–599
Daniel DL, Haughton VM, Williams AL, Strother CM (1979) Arteriovenous malformation simulating a cyst on computed tomography. Radiology 133: 393–394
Maiuri F, Benvenuti D, De Simon MR, Cirillo S, Correiero G, Giamundo A (1986) Cystic lesions associated with meningiomas. Surg Neurol 26: 591–597
Messina AV, Chernik NL (1976) Computed tomography: the “resolving” intracerebral hemorrhage. Radiology 118: 609–613
New PFJ, Scott WR, Schnur JA, Davis KR, Taveras JM (1974) Computerized axial tomography with EMI scanner. Radiology 110: 109–123
Paxton R, Ambrose J (1974) The EMI scanner. A brief review of the first 650 patients. Br J Radiol 47: 530–565
Pressman BD, Kirkwood JR, Davis DO (1975) Computerized transverse tomography of vascular lesions of the brain. Part 1, Arteriovenous malformations. Am J Roentgenology 124: 208–214
Terbrugge K, Scotti G, Ethier R, Melancon D, Tchang S, Milner C (1977) Computed tomography in intracranial arteriovenous malformations. Radiology 122: 703–705
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Itakura, T., Takifuji, K., Ozaki, F. et al. Cystic arteriovenous malformation. Acta neurochir 96, 154–158 (1989). https://doi.org/10.1007/BF01456176
Issue Date:
DOI: https://doi.org/10.1007/BF01456176