[Name] Cyberbrain Sclerosis [Source] Ghost in the Shell: Stand Alone Complex [Symptoms] 
A disease characterized by a hardening of the brain tissues precipitated by the cyberization process. It is described as being that century's cancer or tuberculosis. Cyberbrain Sclerosis is described as being extremely rare, enough so that it doesn't deter most people from being cyberized, but it is incurable once diagnosed.