Huang S T
Zhongshan Hospital, Shanghai Medical College.
Zhonghua Zhong Liu Za Zhi. 1990 Jan;12(1):43-5.
Five cases of cardiac myxoma of the right atrium and 1 case of myxosarcoma which involved both left and right atria are reported. Clinical manifestations were palpitation, shortness of breath, systolic and diastolic murmurs at the apical or tricuspid area, etc. Evidence of right atrial enlargement was shown on X-ray film. Echocardiographic examination was highly valuable in the diagnosis of this disease. The morphology of the myxoma of the right atrium was similar to that of the left one. The former was larger and heavier than the latter. Hemorrhage and necrosis inside the tumors were usually more severe in right atrial myxoma than the left. The clinical and pathological features (gross, histological and ultrastructural) are briefly discussed. In this series, 1 case of right atrial myxoma was complicated by alveolar cell carcinoma, but the histological changes of the two tumors were totally different.
本文报告了5例右心房心脏黏液瘤及1例累及左右心房的黏液肉瘤。临床表现为心悸、气短、心尖部或三尖瓣区收缩期及舒张期杂音等。X线片显示右心房增大。超声心动图检查对本病的诊断具有很高的价值。右心房黏液瘤的形态与左心房黏液瘤相似。前者比后者更大、更重。右心房黏液瘤内的出血和坏死通常比左心房黏液瘤更严重。本文简要讨论了其临床和病理特征（大体、组织学和超微结构）。在本系列中，1例右心房黏液瘤合并肺泡细胞癌，但两种肿瘤的组织学改变完全不同。
