This sub-collection presents archival research data on clinical cases of nervous diseases collected between 1954 and 1996 at the Department of Experimental and Clinical Neuropathology, of Mossakowski Medical Research Institute, PAS. Individual cases include basic clinical, anatomical, and very detailed histological diagnosis of the patient. Additionally, for each case, the Department of Experimental and Clinical Neuropathology stores research materials in the form of slides and photographs that haven’t been digitized yet.