A 70-year-old woman was admitted to a general hospital because of hot
flush, nausea, sleep disturbances, psychomotor agitation, conceptual d
isorganization, persecutory delusions and auditory hallucinations. Thr
ee days after the diagnosis and initiation of treatment for hyperthyro
idism she was referred to the psychiatric clinic because of increasing
dizziness. Continuous antithyroid therapy with the addition of neurol
eptic treatment resulted in a complete remission of the psychotic symp
toms. Subsequent radiojodine therapy was performed without complicatio
ns. Psychopathology and organic symptoms as well as the course of illn
ess allow the diagnosis of a symptomatic delusional and hallucinatory
psychosis. The outcome of an earlier psychotic episode has to be seen
in this context.