1283 / 1835
•
CR in all pts
•
Intraorbital recurrence in previously uninvolved
areas not included in the initial target volume: 4
pts (33%) with low-grade lymphoma treated with
partial orbit RT
Pfeffer et al, IJROBP, 2004
Partial orbital irradiation has been associated
with higher risk of local failure
Is it necessary to treat the entire orbit?