Semantic dementia is a rarely diagnosed neurodegenerative disease in the field of frontotemporal lobar degenerations characterized by marked atrophy of the anterior pole of the temporal lobe. In the case report of a patient monitored at our workplace, we summarize the typical manifestations of this disease - selective semantic memory impairment with marked anomie, saving visual constructive and practical functions, paradoxical dissociation of autobiographical memory with saving memories of recent events and inability to recall childhood memories.
We explain this interesting type of disorder in the light of modern memory theory.