Kauczor H U, Schwickert H C, Mayer E, Kersjes W, Moll R, Schweden F
Klinik mit Poliklinik für Radiologie, Universität Mainz, Germany.
Cardiovasc Intervent Radiol. 1994 Jul-Aug;17(4):185-9. doi: 10.1007/BF00571532.
The diagnosis of the rare primary malignant tumors of the pulmonary arteries is often delayed as symptoms are nonspecific.
Computed tomography (CT) and magnetic resonance imaging (MRI) of three patients with occlusion of the right pulmonary artery, two with sarcoma and one with chronic thromboembolic disease were analyzed for discriminating diagnostic criteria.
Criteria suggesting pulmonary artery sarcoma are inhomogeneous high or low attenuation (hemorrhage, necrosis), soft-tissue density in pulmonary arteries, vascular distension, enhancement after administration of gadopentetate dimeglumine. Criteria for chronic thromboembolic disease are homogeneous soft-tissue lesions, abrupt vascular narrowings and cut-offs, as well as regional parenchymal hyperdensities.
CT and MRI provide complementary findings suggesting advanced pulmonary artery sarcoma instead of chronic thromboembolism.
由于症状不具特异性，肺动脉原发性罕见恶性肿瘤的诊断常常延迟。
分析了3例右肺动脉闭塞患者的计算机断层扫描（CT）和磁共振成像（MRI），其中2例为肉瘤，1例为慢性血栓栓塞性疾病，以鉴别诊断标准。
提示肺动脉肉瘤的标准为不均匀的高或低衰减（出血、坏死）、肺动脉内软组织密度、血管扩张、给予钆喷酸葡胺后的强化。慢性血栓栓塞性疾病的标准为均匀的软组织病变、血管突然变窄和截断，以及局部实质高密度。
CT和MRI提供了互补的表现，提示为晚期肺动脉肉瘤而非慢性血栓栓塞。
