ABSTRACTIntroductionCerebral amyloid angiopathy (CAA) related inflammation (CAA‐ri) is considered to be a distinct syndrome caused by an inflammatory response to amyloid‐β deposition in the walls of small leptomeningeal and cortical vessels in patients with sporadic CAA. However, recent data suggest that inflammation might contribute to a broader range of CAA subtypes.ResultsWe describe a case of probable iatrogenic CAA (iCAA), which manifested with multiple intracerebral haemorrhages complicated by the development of clinical and radiological features of CAA‐ri, which responded to steroids. Clinical, neuroimaging and CSF data suggested possible co‐existing Alzheimer's pathology.DiscussionCAA‐ri may occur in association with iCAA, suggesting that a broader spectrum of patients might benefit from steroid treatment than previously assumed.