Table 4.

Patients with new or increased contrast enhancement (CE) during follow-up (FU), and the median volume of new or increased CE which extends beyond the volume of MRI/S‥ One of the two patients at 6 months showed increased CE of >25% at 6 month FU relative to pre-RT whereby the increased CE beyond MRI/S occurred as an outgrowth from prior discernible CE changes (<25% at prior FU).

Time after RT (months)	Number of patients with new or increased CE	Number of patients with new or increased CE beyond MRI/S	Median volume of new or increased CE beyond MRI/S (cc)
2	3	1	5.1
4	2	0	-
6	2	(1)	(3.3)
8	1	0	-
10	1	0	-