Progressive visual agnosia with posterior cortical atrophy.
A patient of posterior cortical atrophy characterized by early signs of progressive visual agnosia documented by repeated neuropsychological tests, is reported. SPECT and MRI findings showed left unilateral parieto-occipital involvement in the earlier stage. A PET study executed eight months later showed bilateral parieto-occipital hypometabolism, but predominantly in the left hemisphere. This suggests that the degeneration may have developed asymmetrically, progressing from left unilateral to bilateral.
Mizuno
M
M
Clinical Neuropsychology Service, Faculty of Psychology, University of Padua, Italy.
Sartori
G
G
Liccione
D
D
Battelli
L
L
Campo
R
R
D000377:Agnosia / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000523:psychology; D001284:Atrophy / Q000000981:diagnostic imaging; D002540:Cerebral Cortex / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D009778:Occipital Lobe / Q000000981:diagnostic imaging; D010296:Parietal Lobe / Q000000981:diagnostic imaging; D015899:Tomography, Emission-Computed, Single-Photon; D014796:Visual Perception / Q000502:physiology*