This book mainly is compacted with the cases series regarding the central nervous system pathologies that occurs secondary to disrupted hydromechanics of brain. The book introduces many rare case studies such as juvenilepilocystic astrocytoma. This book mainly manifests the wide spectra of magnetic resonance imaging to investigate the physiology and pathology regarding csf circulation. The most interesting feature of this book is the widely explained clinical feature of every central nervous system pathology leading towards irregular hydromechanics of csf circulation.