<prompt> Which of the following represents the additional component in pentology of Fallot?Atrial Septal Defect ASDVentricular Septal Defect VSDRight ventricular Hyperophy RVHPulmonic Stenosis  <response>: Pentology of fallot is a rare anomaly which consist of all structural anomalies of tetralogy of fallot together with an ostium secondum ASD. Ref: Essential pediatrics by O.P.Ghai 6th ednpage 406; An Introduction to Electro Cardiography, 7th Edition By Leoschamroth page267. 