Neuropathology is that the study of disease of systema nervosum tissue, usually within the sort of either small surgical biopsies or whole-body autopsies. Neuropathology also relates to forensic medicine because brain disorder or brain injury are often associated with explanation for death. Neuropathology shouldn't be confused with neuropathy, which refers to disorders of the nerves themselves (usually within the peripheral nervous system) instead of the tissues.