Since publication of the sixth edition, there have been extraordinary technical advances in neurology, most notably in the fields of molecular genetics and new imaging techniques. There are new sections on each of these topics. This volume also has a new chapter on the neurological complications of AIDS. Many new topics have been introduced and there have been major revisions to most chapters but particularly those on vascular disease, the dystonias, Alzheimer's disease and dementia, parkinsonism, neuromuscular diseases, multiple sclerosis and the neurological consequences of neoplasms. This highly successful text continues to provide clear and lucid explanations of how to diagnose and treat common neurological disorders - essential reading for every physician. New material is included on extradural haematomas, the Lambert Eaton myasthenic syndrome, inflammatory myopathies, Huntington's disease, the Lesch-Nyhan syndrome, cerebral malaria, the anterior spinal artery syndrome, chronic inflammatory demyelinating neuropathies, sarcoidosis, the MTPT parkinsonism model, multiple system atrophy, lipoidoses and the Arnold-Chiari malformation.