Fig. 2From: LINAC stereotactic radiosurgery for trigeminal neuralgia –retrospective two-institutional examination of treatment outcomesa-c Retrogasserian (RG) target post Janetta decompression. Different situation pre (a) and post (b) Janetta decompression with narrowed space in the prepontine cistern (red arrow). Typical small dot-shaped contrast enhancement 2 months after radiosurgery (c)Back to article page