[Chronic myeloid leukemia--a rare cause of labyrinth apoplexy].

Background: Cochleovestibular lesions in patients with acute myeloid leukemia or the blastic phase of chronic myeloid leukemia are usually due to leukemic infiltration, infection or hemorrhage. In contrast, the most likely cause of cochleovestibular lesions in the chronic phase of the chronic myeloid leukemia seems to be disturbed microvascular perfusion and vascular occlusion.

Case Report: A 45-year old patient with a chronic myeloid leukemia presented with the sudden onset of profound deafness in his right ear combined with a total loss of vestibular function on the same side.