The Annals of Thoracic Surgery, Vol 54, 761-763, Copyright © 1992 by The Society of Thoracic Surgeons
Left ventricular diverticulum with hypertrophy of the left ventricular apex
C Yamashita, H Nakamura, S Tobe, T Koterazawa and S Yamamoto
Miki City Hospital, Kobe, Japan.
A surgical case of diverticulum in the left ventricular apex is presented.
A two-dimensional echocardiogram and magnetic resonance image showed a
calcified tumor buried in the marked hypertrophied apex of the left
ventricle. Enucleation of the oval and hard tumor (4 x 2.5 x 2.5 cm) was
performed through the apex, and the defect was anastomosed by buttress
sutures. Histologic examination demonstrated that the tumor cavity was
filled with a thrombus encapsulated by thickened and calcified endocardium
that extended to the left ventricular cavity. In this report, the etiology
of the diverticulum with a hypertrophied myocardium is discussed.