OBJECTIVE: To investigate progressive non-fluent aphasia and histopathologically-proven corticobasal degeneration. METHODS: We evaluated symptoms, signs, neuropsychological deficits, and radiology data longitudinally, in a patient with autopsy-proven corticobasal degeneration and correlated these observations directly to the neuroanatomic distribution of the disease. RESULTS: At presentation, a specific pattern of cognitive impairment was evident with an extreme extrapyramidal motor abnormality. Follow-up examination revealed persistent impairment of praxis and executive functioning, progressive worsening of language performance, and moderately preserved memory. The motor disorder manifested and worsened as the condition progressed. Many of the residual nerve cells were ballooned and achromatic with eccentric nuclei. Tau-immunoreactive pathology was significantly more prominent in neurons in the frontal and parietal cortices and dentate nuclei than in temporal neocortex, hippocampi and brainstem. CONCLUSION: The clinical diagnosis of progressive non-fluent aphasia secondary to corticobasal degeneration hinged on a specific pattern of impaired cognition as well as an extrapyramidal motor disorder, reflecting the neuroanatomic distribution of the disease in frontal and anterior temporal cortices and the dentate nuclei.
OBJECTIVE: To investigate progressive non-fluent aphasia and histopathologically-proven corticobasal degeneration. METHODS: We evaluated symptoms, signs, neuropsychological deficits, and radiology data longitudinally, in a patient with autopsy-proven corticobasal degeneration and correlated these observations directly to the neuroanatomic distribution of the disease. RESULTS: At presentation, a specific pattern of cognitive impairment was evident with an extreme extrapyramidal motor abnormality. Follow-up examination revealed persistent impairment of praxis and executive functioning, progressive worsening of language performance, and moderately preserved memory. The motor disorder manifested and worsened as the condition progressed. Many of the residual nerve cells were ballooned and achromatic with eccentric nuclei. Tau-immunoreactive pathology was significantly more prominent in neurons in the frontal and parietal cortices and dentate nuclei than in temporal neocortex, hippocampi and brainstem. CONCLUSION: The clinical diagnosis of progressive non-fluent aphasia secondary to corticobasal degeneration hinged on a specific pattern of impaired cognition as well as an extrapyramidal motor disorder, reflecting the neuroanatomic distribution of the disease in frontal and anterior temporal cortices and the dentate nuclei.
Entities:
Keywords:
and corticobasal degeneration; neuroimaging; neuropathology; neuropsychology; progressive non-fluent aphasia
Authors: Keith A Josephs; Joseph R Duffy; Edyth A Strand; Jennifer L Whitwell; Kenneth F Layton; Joseph E Parisi; Mary F Hauser; Robert J Witte; Bradley F Boeve; David S Knopman; Dennis W Dickson; Clifford R Jack; Ronald C Petersen Journal: Brain Date: 2006-04-13 Impact factor: 13.501
Authors: Maria Luisa Gorno-Tempini; Nina F Dronkers; Katherine P Rankin; Jennifer M Ogar; La Phengrasamy; Howard J Rosen; Julene K Johnson; Michael W Weiner; Bruce L Miller Journal: Ann Neurol Date: 2004-03 Impact factor: 10.422