Axial T2 magnetic resonance image of stereotactic target to the left trigeminal nerve. The 5 mm collimated target is aligned longitudinally along the axis of the trigeminal nerve. There is minimal edging along the brainstem and root entry zone. The basilar artery (BA) is identified as well as the mandibular condyle (MC).The dotted angle with the solid white arc is the spillover of beams toward the posterior left mandible where the oral carcinoma was found four years after the second stereotactic radiosurgery.