ABSTRACT
Hypertrophic olivary degeneration resulting from lesions of the dento-rubro-olivary pathway, also called Guillain-Mollaret-triangle, has been described previously in a number of cases. Reports about bilateral hypertrophic olivary degeneration of the inferior olivary nuclei are very limited, and the magnetic resonance imaging findings of hypertrophic olivary degeneration in Wilson disease have not yet been described to the best of our knowledge. Herein, we present the first report of bilateral hypertrophic olivary degeneration diagnosed by magnetic resonance imaging in a patient suffering from Wilson disease.
Subject(s)
Humans , Male , Young Adult , Diagnosis, Differential , Hepatolenticular Degeneration/pathology , Hypertrophy/pathology , Magnetic Resonance Imaging/methods , Nerve Degeneration/pathology , Olivary Nucleus/pathologyABSTRACT
Degeneração olivar hipertrófica resulta de lesão no circuito formado pelos núcleos denteado, rubro e olivar inferior (triângulo de Guillain e Mollaret). Pode ser secundária a hemorragias, trauma, neoplasias, entre outras causas que lesem estruturas desse circuito. Destaca-se a relevância deste relato de caso por apresentar um caso de degeneração olivar hipertrófica bilateral, secundária a insulto em ambos os núcleos denteados após ressecção de metástase.
Hypertrophic olivary degeneration represents the results of a lesionthat damages the neuronal connections between the dentate nucleus of the cerebellum, the red nucleus, and the inferior olivary nucleus (Guillain Mollaret triangle). This entity can occur secondary to hemorrhage, trauma, neoplasm and other causes that candamage structures of this pathway. This is an important case report because of its description of a bilateral hypertrophic olivary degeneration, secondary to injuries in both dentate nucleous after metastatic resection.
Subject(s)
Humans , Male , Middle Aged , Magnetic Resonance Spectroscopy/methods , Cerebellar Neoplasms/secondary , Olivary Nucleus/injuries , Olivary Nucleus/pathologyABSTRACT
Relatamos um caso de hipertrofia olivar bilateral e tremor cerebelar após infarto cerebelar unilateral. A degeneração olivar hipertrófica (DOH) é associada ao aumento de sinal no núcleo olivar inferior (NOI), em sequências pesadas em T2. A DOH tem sido mais frequentemente observada ipsilateralmente a lesões do trato tegmentar central ou contralateralmente a lesões do núcleo denteado ou do pedúnculo cerebelar superior. A inervação bilateral de cada NOI por ambos os núcleos denteados pode ter sido responsável pelas características clínicas e radiológicas neste paciente de 63 anos.