Orphanet rare-disease nomenclature identifier Orphanet_324713 (Hereditary cerebral hemorrhage with amyloidosis, Italian type) can be described as follows. Hereditary cerebral hemorrhage with amyloidosis (HCHWA), Italian type is a form of HCHWA (see this term) characterized by an age of onset of 50 years of age, dementia and lobar intracerebral hemorrhage. Also known as: HCHWA, Italian type.