Misumi H, Ishihara K, Imai Y, Nakae S, Takanashi Y
Department of Pediatric Cardiac Surgery, Heart Institute of Japan, Tokyo Women's Medical College.
Kyobu Geka. 1993 Mar;46(3):266-9.
A six-year-old boy with pulmonary stenosis was hospitalized in order to examine the cause of pulmonary stenosis. The right-ventriculography showed a large shadow defect in the right ventricular outflow tract. But the echocardiography showed the cystic tumor, which was covered with thin wall and had echo-free space in it, in the right ventricular outflow tract. We made a diagnosis of pulmonary blood cyst. After cardiopulmonary bypass was established, the main pulmonary artery was incised longitudinally. There were two blood cysts at the left pulmonary cusp which were 1.5 x 1.5 cm and 0.7 x 0.5 cm in size. The cysts were resected and the pulmonary cusp was plicated. Histologically, the wall of the cysts was consisted thick valvular tissues. No pulmonary valve pressure gradient was detected with the echocardiography following the operation.
一名患有肺动脉狭窄的六岁男孩因检查肺动脉狭窄的病因住院。右心室造影显示右心室流出道有较大的阴影缺损。但超声心动图显示右心室流出道有一个囊性肿瘤，其壁薄，内部有无回声区。我们诊断为肺血囊肿。建立体外循环后，纵向切开主肺动脉。左肺动脉瓣叶处有两个血囊肿，大小分别为1.5×1.5厘米和0.7×0.5厘米。切除囊肿并折叠肺动脉瓣叶。组织学检查显示，囊肿壁由厚厚的瓣膜组织构成。术后超声心动图未检测到肺动脉瓣压力阶差。
