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Ann Thorac Surg 1992;54:761-763
© 1992 The Society of Thoracic Surgeons

Articles

Left ventricular diverticulum with hypertrophy of the left ventricular apex

Chojiro Yamashita, MD*, Hiroomi Nakamura, MD, Satoshi Tobe, MD, Toshihiro Koterazawa, MD, Sinnichirou Yamamoto, MD

Miki City Hospital and Department of Surgery, Division II, Kobe University School of Medicine, Kobe, Japan

Accepted for publication December 30, 1991.

* Address reprint requests to Dr Yamashita, Department of Surgery, Division II, Kobe University School of Medicine, 7-5-2 Kusunoki cho Chuoku, Kobe, Japan 650.

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.






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