Unilateral gustatory disturbance by pontine infarction

We reported a case of pontine infarction presenting as diminished taste on the contralateral side. A 67-year-old man was hospitalized with a sudden onset of right hypogeusia. No neurological abnormalities were found except diminished taste in the areas innervated by the chorda tympani, greater petro...

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Bibliographic Details
Published inRinshō shinkeigaku Vol. 38; no. 4; p. 342
Main Authors Fujikane, M, Nakazawa, M, Ogasawara, M, Hirata, K, Tsudo, N
Format Journal Article
LanguageJapanese
Published Japan 01.04.1998
Subjects
Cerebral Infarction - complications
Cerebral Infarction - diagnosis
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Pons - blood supply
Taste Disorders - etiology
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Summary:We reported a case of pontine infarction presenting as diminished taste on the contralateral side. A 67-year-old man was hospitalized with a sudden onset of right hypogeusia. No neurological abnormalities were found except diminished taste in the areas innervated by the chorda tympani, greater petrosal and glossopharyngeal nerves on the right side. Brain MRI demonstrated a lesion with low-intensity on T1-weighted images and high-intensity on T2-weighted images in the left suprapontine tegmentum. Cases of pontine disease presenting as contralateral dysgeusia have rarely been reported. In the present case, we considered that infarction occurred superior to the pontine taste are (PTA). It is suggested that the gustatory pathway superior to PTA takes a chiasmal tract ascending in the brainstem.
ISSN:0009-918X