# ARIA

Source: https://onco.cc/terms/da-term-aria/  
OnCo record `da-term-aria` (Term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

ARIA is swelling or bleeding seen on MRI in people receiving amyloid antibodies. It can be silent or, less often, symptomatic.

## Summary

ARIA-E is oedema. ARIA-H is haemorrhage. Risk is higher in ApoE ε4 carriers. Monitoring schedules live on the product label, not on this glossary card.

## Fields

- Kind: Term
- Last checked: 2026-09-21
- Also known as: amyloid-related imaging abnormalities
- Tags: dementia-atlas

## Sources

- FDA Leqembi: https://www.fda.gov/news-events/press-announcements/fda-converts-novel-alzheimers-disease-treatment-traditional-approval

## Connected records

- drugs: [Donanemab](https://onco.cc/drugs/da-donanemab/), [Lecanemab](https://onco.cc/drugs/da-lecanemab/)
- diagnoses: [Alzheimer’s disease](https://onco.cc/diagnoses/alzheimers-disease/)
- pairings: [Lecanemab with MRI monitoring](https://onco.cc/pairings/da-pair-lecanemab-mri/)

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JSON: https://onco.cc/api/v1/entities/da-term-aria.json