Nobuoka Sachihiko, Saito Kenichi, Miyake Fumihiko, Abe Hiroyuki, Takakuwa Toshifumi, Nakamura Toshio
Division of General Internal Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Asahi-ku, Yokohama-city, Kanagawa, Japan.
J Clin Ultrasound. 2006 Jul-Aug;34(6):313-5. doi: 10.1002/jcu.20213.
A 71-year-old woman underwent echocardiography for the evaluation of hypertensive heart disease. A 2-dimensional echocardiogram revealed an abnormal mass that protruded into the left atrium from the atrial septal side of the left atrial wall. Microscopic examination of the surgical specimen disclosed a mixture of normal-appearing fat, vesicular fat, and hypertrophied myocytes, and degenerated cardiac tissue with foci of necrotic fat tissue, consistent with lipomatous hypertrophy. Although lipomatous hypertrophy of the interatrial septum is rare, this little-known entity should be included in the differential consideration of the left atrial mass detected via echocardiographic examination, particularly in both obese and elderly patients.
一名71岁女性接受了超声心动图检查以评估高血压性心脏病。二维超声心动图显示一个异常肿块从左心房壁的房间隔侧突入左心房。手术标本的显微镜检查发现有外观正常的脂肪、泡状脂肪和肥大的心肌细胞混合存在，还有退化的心脏组织伴有坏死脂肪组织灶，符合脂肪肥厚。尽管房间隔脂肪肥厚很少见，但在通过超声心动图检查发现左心房肿块的鉴别诊断中应考虑到这个鲜为人知的病症，尤其是在肥胖和老年患者中。
