| Prevalence | svPPA accounts for approximately 20-30% of all PPA cases |
| Age of onset | Typically between 50-70 years, with a mean onset age of 60 years |
| Sex distribution | Equal male-to-female ratio |
| Progression | Disease progression leads to widespread cognitive and behavioral changes over 6-12 years |
| Loss of empathy | Diminished emotional responsiveness to social cues |
| Food preferences | Development of unusual food preferences, particularly sweet foods |
| Compulsive behaviors | May include ritualistic or repetitive actions |
| Loss of personal awareness | Diminished concern about personal appearance or hygiene |
| Anterior temporal lobes | Most severely affected, particularly the left temporal pole |
| Mesial temporal structures | Hippocampal involvement in later stages |
| Posterior brain regions | Relatively preserved until late disease stages |
| TDP-43 type C inclusions | Most common pathology (approximately 75% of cases) |
| Databases | OMIMOrphanetClinicalTrialsPubMed |
No AI portrait yet
No comments yet. Be the first to comment!
No comments yet. Be the first to comment!