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. 2001 Nov;22(10):1944–1948.

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fig 1. — Nine of 10 enhancing cranial nerves had a qualitative score of 3.

A, Nonenhanced T1-weighted MR image (400/11/2) in an 88-year-old man with trigeminal neuralgia on the left, obtained 78 d after gamma knife radiosurgery. An excellent response to treatment was achieved. Treatment dose was 45 Gy to the 50% isodose line. Note the intensity of cranial nerve V (arrow).

B, Contrast-enhanced T1-weighted MR image (400/11/2) of cranial nerve V shows marked (grade 3) focal enhancement of the nerve (arrow) adjacent to the pontine edge.