I Problematic Approaches (Figs. 1 to 107).- 1 Approaches for Problematic Cortical Areas and Centrum semiovale (Figs. 1 to 27).- 2 Approaches Close to Basal Ganglia and Allocortex (Figs. 28 to 60).- 3 Dorsal Midline Approaches for Lateral Ventricle and Third Ventricle (Figs. 61 to 96).- 4 Approaches for Lower Brainstem and Cerebellum (Figs. 97 to 107).- II Remarks on Operations, NMR, and Techniques (Figs. 108 to 192).- 5 Registration of All Operations (Figs. 108 to 144).- 6 Simplified Anatomical Transections due to NMR (Figs. 145 to 154).- 7 Addendum: Technical Remarks (Figs. 155 to 170).- 8 Special Considerations for Anatomy and Technical Tricks in Extracerebral Basal Operations (Figs. 171 to 192).- References.