cerebral amyloid angiopathy, APP-related ABeta amyloidosis, Arctic type hereditary cerebral hemorrhage with amyloidosis, Arctic type cerebral amyloid angiopathy, APP-related, Arctic variant Hereditary cerebral hemorrhage with amyloidosis (HCHWA), Arctic type is a form of HCHWA characterized by an age of onset of 54-61 years and progressive Alzheimer's disease-like dementia, without intracerebral hemorrhages. ABetaE22G amyloidosis hereditary cerebral haemorrhage with amyloidosis, Arctic type UMLS:C2751494 GARD:0017493 MEDGEN:414032 Orphanet:324723 HCHWA, Arctic type MONDO:0017949