Observations on glial inclusion bodies in a case of acute disseminated sclerosis.

An unusual rod-like structure enclosed within a vacuole is described as occurring in enlarged glial cells associated with the lesions encountered in an uncommonly acute case of multiple sclerosis apparently heralded by an attack of ;viral encephalitis'. Similar bodies were not found in a variety of other enlarged glial cells. An encapsulated ;grape-fruit' like structure was also seen.