大動脈3弁尖すべてに腫瘍形成を認めた1例

Cardiac Tumor on All Cusps of the Aortic Valve；Report of a Case

はじめに　心臓原発腫瘍は比較的まれな疾患で，剖検例の0.002〜0.28％を占めるにすぎない．その中で乳頭状線維弾性腫（PFE）は比較的多い心臓良性腫瘍であるが，多発することはまれである1）．われわれは，大動脈弁より発生した多発性PFEに対して弁置換術を施行し，良好な治療経過を得たので，文献的考察を加えて報告する．

An 80-year-old woman was incidentally found to have a cardiac tumor on the aortic valve by echocardiography. Papillary fibroelastoma （PFE） was strongly suspected, and urgent operation was performed to prevent embolism. Two tumors were identified arising from the left and right cusps with wide stalks, and aortic valve replacement was performed. By pathological examination, the tumors were diagnosed as PFEs. A small tumor was also found on the non-coronary cusp, which was considered as possible PFE or Lambl’s excrescence. In the case of multiple PFEs on one valve, valve replacement, instead of simple excision of tumors, should be considered.