The case of a 2 1/2 year old Swiss Braunvieh heifer suffering from an
acute disseminated mycotic encephalitis caused by a Mucorales spp. inf
ection is presented. Clinical signs and analysis of cerebrospinal flui
d (increased protein concentration and pleocytosis) were typical for a
n acute encephalitis, probably due to a listeriosis. The histological
examination of the brain revealed an acute disseminated thrombo-emboli
c encephalomyelitis due to a fungi infection, morphologically consiste
nt with Mucorales spp. The occurrence of bovine cerebral mucormycosis
is rare and therefore the veterinarian should become aware of a case w
hich was clinically not distinguishable from a listeriosis.