Primary pontine hemorrhage and gustatory disturbance: clinicoanatomic study.

Abstract

A clinicoanatomic study of 12 patients with tegmental-type primary pontine hemorrhage proved the presence of a gustatory disturbance among other clinical symptoms on the same side of the tongue as that of the pontine lesion, and suggested the secondary pathway of gustatory sensation from the solitary tract nucleus ascends without decussation in the homolateral pontine tegmentum. These results contradict textbook descriptions regarding the human secondary gustatory pathway.

Percepção de sabores em pacientes com acidente vascular encefálico

“…As regiões do prosencéfalo que recebem informação do sabor tem projeções no núcleo do trato solitário e núcleo parabraquial pontino, provendo substrato anatô-mico para a interação prosencéfalo -tronco encefá-lico 6 . A hemorragia pontina primária tegmental pode produzir distúrbio gustativo 15 . A correlação entre a desordem do paladar e a síndrome da circulação parcial anterior no AVE pode ser devido a razões anatômicas relacionadas ABSTRACT Purpose: to assess the perception of bitter, sour, sweet and neutral flavors in stroke patients.…”

Altered Taste and Stroke: A Case Report and Literature Review

“…2 Such testing may have provided psychophysical evidence (eg taste 15 and smell 5,7 ) that our patient had a definitive taste problem and not an olfactory problem. However, given that the patient reported certain food items tasted like "sawdust," we believe that she was indeed experiencing a primary taste problem rather than a parosmia.…”

“…Impaired taste perception can result from lesions in several locations including the pons, insular cortices, and specific thalamic nuclei. [1][2][3][4][5][6][7][8][9][10] Several case reports have detailed altered taste as a result of isolated pontine lesions [2][3][4][5][6]10 as well as both isolated right and left insular lesions. 11,12 Deficits including ageusia (inability to taste), hypogeusia (decreased ability to taste), and dysgeusia (distorted ability to taste) have also been described.…”

Taste Disorders in Acute Stroke

“…[1][2][3][4] Despite this significance there are only few reports on taste disorders in stroke patients. 3,[5][6][7][8][9][10][11] One reason for this lack of systematic investigations may be that until recently, there were no standardized, validated tests of natural gustatory function that would also be commercially available. 12 It is also important to note that detailed taste testing is time-consuming and, during the acute phase of stroke, concern about taste is overshadowed by the patient's other serious and even life-threatening medical problems.…”