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. Author manuscript; available in PMC: 2016 Feb 10.
Published in final edited form as: J Neurosurg. 2012 Apr 13;117(1):109–117. doi: 10.3171/2012.3.JNS111649

Fig. 2.

Fig. 2

Upper: Graph depicting tumor growth following SRS for the management of VS in a patient with NF2. Stereotactic radiosurgery was performed for the right VS immediately before the first available imaging studies. The left VS was untreated until resection (X). Vertical line at the 2-year mark indicates how much the left tumor grew (natural history) versus the right radiated tumor in the same interval. Lower: Axial contrast-enhanced registered MR images demonstrating growth of the right VS (left, asterisk) after SRS and the natural history of the contralateral VS (left and right). Note multiple histologically proven posterior fossa meningiomas (arrows) that were removed at the time of the VS surgeries.