Primary progressive aphasia (PPA) is a type of neurological syndrome and rare type of dementia in which language capabilities slowly and progressively get worse.
The symptoms of PPA depend on what parts of the left cerebral hemisphere are damaged.[1]
References
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| Inflammation | | Brain |
- Encephalitis
- Viral encephalitis
- Herpesviral encephalitis
- Limbic encephalitis
- Encephalitis lethargica
- Cavernous sinus thrombosis
- Brain abscess
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| Brain and spinal cord | |
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Brain/ encephalopathy | | Degenerative | Extrapyramidal and movement disorders | |
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| Dementia |
- Tauopathy
- Frontotemporal dementia/Frontotemporal lobar degeneration
- Lewy bodies dementia
- Posterior cortical atrophy
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| Mitochondrial disease | |
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| Demyelinating |
- Autoimmune
- Inflammatory
- Multiple sclerosis
- For more detailed coverage, see Template:Demyelinating diseases of CNS
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Episodic/ paroxysmal | |
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| CSF |
- Intracranial hypertension
- Hydrocephalus
- Normal pressure hydrocephalus
- Choroid plexus papilloma
- Idiopathic intracranial hypertension
- Cerebral edema
- Intracranial hypotension
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| Other |
- Brain herniation
- Reye syndrome
- Hepatic encephalopathy
- Toxic encephalopathy
- Hashimoto's encephalopathy
- Static Encephalopathy
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| Both/either | | Degenerative | | SA |
- Friedreich's ataxia
- Ataxia–telangiectasia
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| MND |
- UMN only:
- Primary lateral sclerosis
- Pseudobulbar palsy
- Hereditary spastic paraplegia
- LMN only:
- Distal hereditary motor neuronopathies
- Spinal muscular atrophies
- SMA
- SMAX1
- SMAX2
- DSMA1
- Congenital DSMA
- Spinal muscular atrophy with lower extremity predominance (SMALED)
- SMALED1
- SMALED2A
- SMALED2B
- SMA-PCH
- SMA-PME
- Progressive muscular atrophy
- Progressive bulbar palsy
- Fazio–Londe
- Infantile progressive bulbar palsy
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