Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) and ventricular tachycardia in patient with concurrent right ventricular clot Zahra Alizadeh-Sani MD, Anoushiravan Vakili-Zarch MD, Behdad Bahadorian MD, Amir Farjam Fazelifar MD, Majid Kiavar MD, Fariba Alizadeh-Sani MS and Fahimeh Khozeimeh MS Rajaei cardiovascular Medical & Research center, Iran University of medical sciences Introduction Arrhythmogenic right ventricular dysplasia is a heritable disease characterized by fibrofatty degeneration of ventricles. Patients present with ventricular arrhythmias or heart failure symptoms, and sudden cardiac death in some cases. There is little information about the other complications such as clot formation or left sided valvular involvement; therefore, we present the case of arrhythmogenic right ventricular dysplasia with concurrent ventricular clot formation. Case summary This is a case of 26 years old female diagnosed with ARVC .The patient has unusual presentation with ventricular tachycardia and non specific electrocardiogram changes for ARVC such as T wave inversion in V1- V3.In Trans thoracic echocardiogram right ventricular apical clot was observed. Interestingly, in CMR there were diffuse changes in right ventricle and ARVC diagnosed. The origin of tachyarrhythmia considered right outflow tract and treated with ablation successfully. Conclusion Patients with arrhythmogenic right ventricular dysplasia may have other complications other than arrhythmia as well. Management in these setting should be individualized.