Department of Internal Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
Medical Oncology, Mayo Clinic, Rochester, MN, 55905, USA.
J Thromb Thrombolysis. 2021 Nov;52(4):1129-1132. doi: 10.1007/s11239-021-02464-w. Epub 2021 May 7.
Primary pulmonary artery sarcoma (PPAS) is a rare malignancy that is commonly mistaken for pulmonary embolism due to similarities in clinical presentation and radiographic findings. Distinct radiographic findings to help differentiate between the two diseases are highlighted in the case presented. (1) Several nuances in various imaging modalities have been identified to help distinguish pulmonary artery sarcoma from pulmonary thromboembolic disease. (2) The wall eclipsing sign is considered pathognomonic for pulmonary artery sarcoma. (3) Positron emission tomography/computed tomography may help reduce time between diagnosis and treatment, which may ultimately prolong survival. (4) Providers should be well versed on the subtle differences on imaging to prevent future delays in diagnosis and treatment.
原发性肺动脉肉瘤（PPAS）是一种罕见的恶性肿瘤，由于其临床表现和影像学表现相似，常被误诊为肺栓塞。本病例中强调了有助于区分这两种疾病的不同影像学表现。（1）已经确定了几种不同成像方式的细微差别，以帮助区分肺动脉肉瘤和肺血栓栓塞性疾病。（2）壁遮挡征被认为是肺动脉肉瘤的特征性表现。（3）正电子发射断层扫描/计算机断层扫描（PET/CT）可能有助于缩短诊断和治疗之间的时间，从而可能延长生存时间。（4）医务人员应该精通影像学上的细微差异，以防止日后诊断和治疗延误。
