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FIG 2. A 36-year-old patient with astrocytoma II in the right temporo-parietal lobe, examined before (A) and 20 months after stereotactic radiotherapy (B). During follow-up, an irregular contrast-enhancing lesion appeared at the upper region of the irradiated volume (B) with complete involution 13 months later (D). 1H MR spectra (double spin-echo sequence 1500/135/200) (C) show initially elevated ItCho/ItCr and ItCho/INAA values and a strong lipid resonance. Thirteen months later, the spectrum indicates normal brain tissue (E)
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