A 19 year old woman, who suffered from an oligoarthritis for two weeks
was admitted to hospital because of sudden bilateral deafness with ti
nnitus. In the following days she developed bilateral iridozyclitis an
d interstitial nephritis. Borrelia-Burgdorferi IgM-titer was elevated
in serum, but not in the cerebro-spinal fluid. After administration oi
Ceftriaxon for ten days all clinical symptoms resolved. Since specifi
c IgM-titer against Borrelia burgdorferi in some cases of isolated cra
nial nerve palsies are not elevated in the cerebro-spinal fluid, neuro
borreliosis should be taken into account and treated with intravenous
cephalosporines.