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Daniel E. Roos, B. Sc. (Hons), M. D. , FRANZCR. , Brian P

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Presentation on theme: "Daniel E. Roos, B. Sc. (Hons), M. D. , FRANZCR. , Brian P"— Presentation transcript:

1 Lessons From a 17-Year Radiosurgery Experience at the Royal Adelaide Hospital 
Daniel E. Roos, B.Sc.(Hons), M.D., FRANZCR., Brian P. Brophy, FRACS., James Taylor, FRANZCR.  International Journal of Radiation Oncology • Biology • Physics  Volume 82, Issue 1, Pages (January 2012) DOI: /j.ijrobp Copyright © Terms and Conditions

2 Fig. 1 Axial postcontrast CT brain 28 months after radiosurgery for a 20-mm recurrent intraventricular meningioma showing shrinkage to 12 mm (enhancing ovoid lesion), but appearance of a new enhancing focus on the other side of the surgical track (arrow). International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

3 Fig. 2 Axial postcontrast MRI brain 12 years after that shown in Fig. 1 showing stable size of the treated lesion but continued growth of the adjacent nodule to 22 mm. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

4 Fig. 3 Axial noncontrast MRI brain showing a right acoustic neuroma with typical extension to the cerebellopontine angle. The arrow points to lateral extension into the temporal bone and middle cranial fossa that were not appreciated at that time. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

5 Fig. 4 Axial postcontrast MRI brain showing slight growth in the lateral component, and stable size of the medial (treated) component of the acoustic neuroma in Fig. 3, 3 years after radiosurgery. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

6 Fig. 5 Lateral view of a cerebral angiogram showing a 2-cm right frontal arteriovenous malformation. An unreported tiny second right temporal arteriovenous malformation is largely obscured by overlying blood vessels, but the characteristic “early draining vein” (arrow) is clearly seen in retrospect. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

7 Fig. 6 Lateral view of a cerebral angiogram showing disappearance of the arteriovenous malformation shown in Fig. 5, 30 months after radiosurgery. The arrow points to the previously missed right temporal arteriovenous malformation nidus. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © Terms and Conditions

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