A Case of Anterior Inferior Cerebellar Artery Syndrome Accompanied by Polycythemia Presenting Vertigo and Hearing Loss as Initial Symptoms

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  • Fushimi Naoki
    Department of Otolaryngology, Center Hospital of the National Center for Global Health and Medicine
  • Yoshida Tsuyoshi
    Department of Otolaryngology, Center Hospital of the National Center for Global Health and Medicine
  • Tayama Niro
    Department of Otolaryngology, Center Hospital of the National Center for Global Health and Medicine

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Other Title
  • めまいと難聴で発症した多血症を背景とする前下小脳動脈症候群の症例
  • メマイ ト ナンチョウ デ ハッショウ シタ タケッショウ オ ハイケイ ト スル ゼン カ ショウノウ ドウミャク ショウコウグン ノ ショウレイ

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Abstract

<p>　 Patients with polycythemia have high red blood cell count, high hemoglobin level, and hematocrit on blood tests. Some patients with polycythemia are at high risk of developing thrombosis. We report the case of a 72-year-old man with a left anterior inferior cerebellar artery (AICA) infarction, which was associated with polycythemia. He presented with initial symptoms of vertigo and hearing loss in the left ear. As the size of the infarcted region increased over time, he developed a left facial paralysis, left facial paresthesia, and further hearing loss. After undergoing three phlebotomy procedures, he was transferred to a rehabilitation hospital. Acute sensorineural hearing loss with vertigo can be due not only to inner ear disease but also to cerebrovascular disease, such as in this case. Therefore, head MRI, including an MRA, is essential for diagnosis. Polycythemia can be diagnosed using routine blood tests and should be considered in patients presenting with dizziness and hearing loss.</p>

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