Anatomy and pathological cytology refer to the medical specialty that studies tissues, cells, and their abnormalities to contribute to the diagnosis of diseases, particularly cancers. It makes it possible to evaluate the precise type of affection to guide the therapeutic decision. The anatomy and cytology resort to macroscopic study (to the eye) to conventional microscopy, electron microscopy, molecular biology techniques to analyze tissue (histology) and cells (cytology ). The diseases related to the nervous system and peripheral within the neuropathology who studies the morphological alterations of cells and tissues in his field.