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Ophthalmic Plast Reconstr Surg. 2018 Oct 24. doi: 10.1097/IOP.0000000000001239. [Epub ahead of print]

Fractionated Stereotactic Radiotherapy for Cavernous Venous Malformations of the Orbital Apex.

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Alfred Health Radiation Oncology, The Alfred Hospital.
Orbital Plastic and Lacrimal Clinic, Royal Victorian Eye and Ear Hospital.
Radiation Oncology, Epworth Healthcare.
Monash University, Melbourne, Australia.



The objective of this study was to investigate the efficacy and safety of fractionated stereotactic radiotherapy in the treatment of cavernous venous malformation of the orbital apex.


The authors reviewed a prospective database from a single center of patients with cavernous venous malformation of the orbital apex who had treatment with fractionated stereotactic radiotherapy. The authors compared the symptoms, visual function and the size of the tumor pre- and posttreatment as well as reviewed the treatment details and the incidence of complications.


Six patients received treatment with fractionated stereotactic radiotherapy for cavernous venous malformation involving the orbital apex. The median age was 48 (range, 32-63), and 50% were female. Patients received a dose of 45 to 50.4 Gy in 1.8 to 2 Gy fractions. Median follow up was 33 months (range, 18-66 months). The average tumor volume reduction at posttreatment imaging after 12 months was 63%. All lesions reduced in size postradiotherapy and remained controlled for the duration of follow up. All patients who had proptosis or a visual field defect had an improvement in the symptoms posttreatment. There were no complications of the treatment.


Fractionated stereotactic radiotherapy appears to be a safe and effective management option for cavernous venous malformation of the orbital apex and leads to a sustained reduction of the volume of the lesion with associated improvement in symptoms and visual function.

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