This includes all other varieties of psychosis attributed to intracranial infection by Spirochaeta pallida. The syndrome sometimes has features of organic brain syndrome. The acute infection is usually produced by meningovascular inflammation and responds to systemic antisyphilitic treatment. The chronic condition is generally due to gummata. If not of psychotic proportion, the disorder is classified Non-psychotic OBS with intracranial infection.
As of DSM-III, this disorder is no longer part of the DSM.