has material basis in germline mutation in CST3 cerebral amyloid angiopathy ACys amyloidosis https://github.com/monarch-initiative/mondo/issues/4521 https://www.malacards.org/card/cerebral_amyloid_angiopathy_cst3_related OMIM:105150 cystatin amyloidosis icd11.foundation:1349991114 hereditary cerebral haemorrhage with amyloidosis DOID:0070027 amyloidosis 6 CST3-related amyloidosis cerebral hemorrhage, hereditary, with amyloidosis CST3-related cerebral amyloid angiopathy hereditary cerebral haemorrhage with amyloidosis, Icelandic type HCHWA, Icelandic type Hereditary cerebral hemorrhage with amyloidosis (HCHWA), Icelandic type is a form of HCHWA characterized by an age of onset of 20-30 years, systemic amyloidosis and recurrent lobar intracerebral hemorrhages. MONDO:0007098 cerebral amyloid angiopathy, CST3-related Orphanet:100008 ICD9:437.8 hereditary cystatin C amyloid angiopathy amyloidosis, Cerebroarterial, Icelandic type UMLS:C1527338 GARD:0016930 SCTID:703220002 hereditary cerebral hemorrhage with amyloidosis ICD9:277.39 hereditary cerebral hemorrhage with amyloidosis, Icelandic type cerebral amyloid angiopathy MEDGEN:279656