Summary
A patient with haemorrhage in the right tegmentum of the pons demonstrated ipsilateral disturbance of taste on both the anterior two-thirds and posterior one-third of the tongue. The contralateral medial lemniscus was not disturbed, contrary to the early descriptions that the secondary gustatory neurons from the nucleus of the solitary tract cross and turn upwards in the pons through the contralateral medial lemniscus. This finding would accord with the concept of the pontine taste area which receives ipsilaterally the secondary gustatory neurons from the anterior pole of the nucleus of the solitary tract.
Zusammenfassung
Bei einem Patienten mit einer Blutung in der rechten Brückenhaube war homolateral eine Geschmacksstörung der ganzen entsprechenden Zungenhälfte nachweisbar. Der Lemniskus medialis auf der Gegenseite war nicht befallen. Dies steht im Gegensatz zu früheren Beschreibungen, wonach das sekundäre Geschmacksneuron vom Nucleus des Tractus solitarius hinüberkreuzt und dann in der Brücke durch den contralateralen Lemniskus medialis nach rostral verläuft. Die vorliegenden eigenen Befunde stützen die Annahme eines pontinen Geschmackszentrums, welches ipsilateral die Endigung eines sekundären gustatorischen Neurons aus dem rostralen Pol des Nucleus des Tractus solitarius empfängt.
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References
Allen WF (1923) Origin and destination of the secondary visceral fibers in guinea pig. J Comp Neurol 35:275–310
Bernard RA, Nord SG (1971) A first-order synaptic relay for taste fibers in the pontine brain stem of the cat. Brain Res 30:349–356
Gerebtzoff MA (1939) Les voies centrales de la sensibilité et du goût et leurs terminaisons thalamiques. Cellule 48:91–146
Nageotte J (1906) The pars intermedia or nervus intermedius of Wrisberg, and the bulbopontine gustatory nucleus in man. Rev Neurol Psychiatry 4:472–488
Norgren R (1976) Taste pathways to hypothalamus and amygdala. J Comp Neurol 166:17–30
Norgren R (1978) Projections from the nucleus of the solitary tract in the rat. Neuroscience 3:207–218
Norgren R, Leonard CM (1971) Taste pathways in rat brainstem. Science 173:1136–1139
Norgren R, Leonard CM (1973) Ascending central gustatory pathways. J Comp Neurol 150:217–238
Norgren R, Pfaffmann C (1975) The pontine taste area in the rat. Brain Res 91:99–117
Rhoton AR Jr (1968) Afferent connections of the facial nerve. J Comp Neurol 133:89–100
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Nakajima, Y., Utsumi, H. & Takahashi, H. Ipsilateral disturbance of taste due to pontine haemorrhage. J Neurol 229, 133–136 (1983). https://doi.org/10.1007/BF00313454
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DOI: https://doi.org/10.1007/BF00313454