MONDO_0017945 (ABetaL34V amyloidosis) can be described as follows. Hereditary cerebral hemorrhage with amyloidosis (HCHWA), Piedmont type is a form of HCHWA characterized by an age of onset between 50-70 years of age, recurrent lobar intracerebral hemorrhages and cognitive decline. Also known as: ABeta amyloidosis, Piedmont type, ABetaL34V-related amyloidosis, HCHWA, Piedmont type, hereditary cerebral haemorrhage with amyloidosis, Piedmont type, hereditary cerebral hemorrhage with amyloidosis, Piedmont type.