White C S, Templeton P A, Pais S O, Clouston J
Department of Radiology, University of Maryland Medical Center, Baltimore 21201.
J Thorac Imaging. 1994 Spring;9(2):105-7. doi: 10.1097/00005382-199421000-00010.
Pulmonary arteriovenous malformation (PAVM) results from an anomalous communication between a pulmonary artery and vein and may lead to life-threatening hemoptysis. Pulmonary angiography is the standard diagnostic technique but may be falsely negative in the unusual instance of a thrombosed PAVM. We report a patient with a thrombosed PAVM in which the initial pulmonary angiogram incorrectly suggested pulmonary embolism. A subsequent magnetic resonance (MR) angiogram demonstrated recanalization of the PAVM, thus establishing the true nature of the lesion and leading to appropriate intervention.
肺动静脉畸形（PAVM）是由肺动脉和静脉之间的异常交通引起的，可能导致危及生命的咯血。肺血管造影是标准的诊断技术，但在血栓形成的PAVM这种不常见情况下可能出现假阴性。我们报告了一例血栓形成的PAVM患者，其最初的肺血管造影错误地提示为肺栓塞。随后的磁共振（MR）血管造影显示PAVM再通，从而明确了病变的真实性质并促使进行了适当的干预。
