chondrocalcinosis 2 (Monarch Disease Ontology entry MONDO_0007319) is a chronic inherited arthropathy characterized by chondrocalcinosis (CC; i.e. cartilage calcification), often associated with recurrent acute calcium pyrophosphate (CPP) crystal arthritis and polyarticular osteoarthritis (OA). Also known as: Familial Calcium Pyrophosphate Deposition Disease, calcium pyrophosphate dihydrate crystal deposition disease, chondrocalcinosis type 2, familial CC, familial CPPD, familial articular chondrocalcinosis, familial calcium pyrophosphate deposition, familial calcium pyrophosphate dihydrate deposition disease.