# Wrong-subtype treatment

Source: https://onco.cc/bottlenecks/da-bn-subtype-misclassification/  
OnCo record `da-bn-subtype-misclassification` (Bottleneck). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Lewy body, vascular, and frontotemporal dementia are still treated as if they were typical Alzheimer’s disease, which can add harm.

## Summary

Antipsychotics in Lewy body disease, antibodies without amyloid confirmation, and cholinesterase inhibitors pushed in FTD are examples of map failures, not just knowledge gaps.

## Fields

- Kind: Bottleneck
- Last checked: 2026-09-21
- Tags: dementia-atlas
- Stage: biology
- Severity: major
- Causes: Overlapping symptoms.; Limited access to specialist assessment.; Trial evidence dominated by Alzheimer’s disease.

## Sources

- NICE NG97: https://www.nice.org.uk/guidance/ng97

## Connected records

- diagnoses: [Alzheimer’s disease](https://onco.cc/diagnoses/alzheimers-disease/), [Dementia (umbrella)](https://onco.cc/diagnoses/dementia/), [Dementia with Lewy bodies](https://onco.cc/diagnoses/dementia-with-lewy-bodies/), [Frontotemporal dementia](https://onco.cc/diagnoses/frontotemporal-dementia/), [Mixed dementia](https://onco.cc/diagnoses/mixed-dementia/), [Vascular dementia](https://onco.cc/diagnoses/vascular-dementia/)

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