Rinsho Shinkeigaku (Clinical Neurology)

Brief Clinical Note

A case of left dysgeusia due to hemorrhage near the left superior cerebellar peduncle

Yoshinori Shibaike, M.D.1j, Satoshi Kawajiri, M.D.1j, Hidetaka Arishima, M.D., Ph.D.1j and Ken-ichiro Kikuta, M.D., Ph.D.1j

1) Department of Neurosurgery, Division of Medicine, Faculty of medical Sciences, University of Fukui

We report a rare case with unilateral dysgeusia due to cerebrovascular disease. A 45-year-old man was admitted to the hospital with a sudden onset of dysesthesia in the right face and upper and lower limbs. A CT scan revealed a left pontine hemorrhage. A day after onset, the patient became aware of unilateral dysgeusia. Electrogustometry showed significantly higher thresholds in the left chorda tympani nerve and glossopharyngeal nerve compared to the right nerves. We diagnosed the hemorrhage caused unilateral dysgeusia. Although dysesthesia in the right face and upper and lower limbs disappeared, the dysgeusia in the left tongue persisted six months after symptom onset. Based on the neurological and radiological findings in this case, we discuss the central gustatory pathway with literatures.
Full Text of this Article in Japanese PDF (986K)

(CLINICA NEUROL, 62: 391|394, 2022)
key words: dysgeusia, electrogustometry, central gustatory pathway

(Received: 1-Nov-21)