超声造影在巨大原发性心脏血管肉瘤多模态诊断中的应用：病例报告

摘要(中文译文)

我们报告一例26岁女性，表现为心悸和头晕的非典型症状。经胸超声心动图（TTE）显示右心房内一大型低回声肿块，伴有心包积液。超声造影显示肿块在一个心动周期内出现快速、强烈且均匀的增强，提示富血供恶性肿瘤。随后的计算机断层扫描（CT）和磁共振成像（MRI）证实了上述发现，并排除了远处转移。肿块手术切除后，病理学和免疫组化分析证实了血管肉瘤的诊断。患者术后开始接受AIM化疗。本病例展示了超声造影在多模态影像中的诊断价值，尤其是在心脏血管肉瘤非典型表现的情况下。

Abstract

We report the case of a 26-year-old woman presenting with atypical symptoms of palpitations and dizziness. Transthoracic echocardiography (TTE) revealed a large hypoechoic mass in the right atrium accompanied by pericardial effusion. Contrast echocardiography showed rapid, intense homogeneous enhancement within one cardiac cycle, suggesting hypervascular malignancy. Subsequent computed tomography (CT) and magnetic resonance imaging (MRI) confirmed the findings and excluded distant metastases. Following surgical excision of the mass, pathological and immunohistochemical analysis confirmed the diagnosis of angiosarcoma. The patient was started on postoperative AIM chemotherapy. This case demonstrates the diagnostic value of contrast echocardiography within multimodal imaging, especially in atypical presentations of cardiac angiosarcoma.

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