Recent topics of interest in neurosurgery are discussed in selected papers in this volume. The first major topic deals with vascular malformations of the brain, where neuroradiological interventions and microneurosurgical treatment present major advances. The second major topic covers treatment patterns for various supratentorial tumors in Ahildhood. The interdisciplinary aspects of neurosurgical intensive care, particularly electrophysiology and anesthesia, are treated extensively.