[Description of an unusual clinical picture of visual hallucinations (polyopsia, erythropsia) as expression of right temporo-occipital ischemia (visual association cortex, Brodman area 37].

An unusual clinical picture (polypsia and erythropsia) as a consequence of an ischaemic lesion of the temporo-occipital junction, known as Brodman area 37 is reported. CT images showed that the lesion area was linked with the two particular function of visual association and memory peculiar to area 37 and, as is well known in the literature, predominant in right hemisphere damage.