Mixed dementia
More than one brain disease is contributing, often Alzheimer’s pathology plus vascular injury.
Overview
See the mixed dementia diagnosis page. Trial results from 'pure' cohorts may not transfer.
- Frontal lobe (glioblastoma commonest)
- Temporal lobe
- Corpus callosum (butterfly glioma)
- Lower-grade IDH-mutant glioma
- Cerebellum (medulloblastoma)
- Brainstem and spinal cord (diffuse midline glioma, cord tumours)
- Ventricles and ependymal lining (ependymoma)
- Sella and pituitary (pituitary tumours, craniopharyngioma)
- Deep periventricular tissue (CNS lymphoma)
- Meninges and convexity (meningioma)
- Grey-white junction (brain metastases)
- Cerebellopontine angle and eighth nerve (vestibular schwannoma)
- Pineal and suprasellar midline (germ cell tumours)
Gliomas infiltrate along white matter and can cross the corpus callosum, medulloblastoma sits in the cerebellum, and CNS lymphoma favours deep periventricular tissue; none spread through lymph nodes.
- Frontal lobe (glioblastoma commonest)
- Temporal lobe
- Corpus callosum (butterfly glioma)
- Lower-grade IDH-mutant glioma
- Cerebellum (medulloblastoma)
- Brainstem and spinal cord (diffuse midline glioma, cord tumours)
- Ventricles and ependymal lining (ependymoma)
- Sella and pituitary (pituitary tumours, craniopharyngioma)
- Deep periventricular tissue (CNS lymphoma)
- Meninges and convexity (meningioma)
- Grey-white junction (brain metastases)
- Cerebellopontine angle and eighth nerve (vestibular schwannoma)
- Pineal and suprasellar midline (germ cell tumours)
No conventional lymphatics: gliomas spread along white matter tracts and, rarely, through cerebrospinal fluid; medulloblastoma can seed the spine.
Same organ: Dementia (umbrella), Alzheimer’s disease, Dementia with Lewy bodies, Parkinson’s disease dementia, Vascular dementia, Frontotemporal dementia, Mild cognitive impairment
Showing the organ this term concerns: Mixed dementia.
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