Although acute disseminated encephalomyelitis has been observed after a var
iety of viral infections and an occasional bacterial infection, it has not
been reported in association with rickettsial infections. Reported isa 7-ye
ar-old male with magnetic resonance images and clinical manifestations sugg
estive of acute disseminated encephalomyelitis after a tick bite and serolo
gically proven Rocky Mountain spotted fever. (C) 1999 by Elsevier Science I
nc. All rights reserved.