The Annals of Thoracic Surgery, Vol 29, 357-363, Copyright © 1980 by The Society of Thoracic Surgeons
True diverticulum of the right ventricle: two cases associated with tetralogy of Fallot
P Magrassi, C Chartrand, R Guerin, C Kratz and P Stanley
A true right ventricular diverticulum is a rare malformation consisting of
an accessory ventricular outpouching communicating with the right ventricle
through a muscular annulus and located at the right superior margin of the
right ventricle. Its normal myocardial structure causes it to function as
normal ventricle and in itself does not cause functional disturbances. In
all reported instances, the malformation was associated with a ventricular
septal defect and obstructive lesions of the right ventricular outflow
tract. The 2 patients we describe had partial resection at the time of
repair of tetralogy of Fallot and are doing well one and four years
postoperatively.