arrhythmogenic right ventricular dysplasia 12 (Monarch Disease Ontology term MONDO_0012684) is any familial isolated arrhythmogenic right ventricular dysplasia in which the cause of the disease is a mutation in the JUP gene. Also known as: ARVC12, ARVD12, JUP familial isolated arrhythmogenic right ventricular dysplasia, arrhythmogenic right ventricular cardiomyopathy 12, arrhythmogenic right ventricular dysplasia type 12, arrhythmogenic right ventricular dysplasia, familial, type 12, familial arrhythmogenic right ventricular dysplasia 12, familial isolated arrhythmogenic right ventricular dysplasia caused by mutation in JUP.