Gill Sana Munir, Hassan Aamna, Bashir Humayun, Shafiq Waqas
Shaukat Khanum Memorial Cancer Hospital and Research Centre, Department of Nuclear Medicine, Lahore, Pakistan.
Mol Imaging Radionucl Ther. 2023 Jun 20;32(2):178-180. doi: 10.4274/mirt.galenos.2023.81567.
Intravenous tumor extension is a well-recognized phenomenon occurring in various malignancies but is a relatively rare entity in thyroid carcinoma. In patients with poorly differentiated thyroid cancer (pDTC), I-131 avid superior vena cava tumor (SVC) thrombus at initial presentation is infrequent and potential life threatening. Tumor thrombus can form either due to direct vascular extension of the primary mass or by hematogenous spread. Hybrid nuclear imaging can differentiate the two entities, which can impact the treatment plan of the patient. We present images of an interesting case of evolution of SVC thrombus in a 46-year-old woman with diagnosed pDTC over the span of two years.
静脉内肿瘤扩展是一种在各种恶性肿瘤中都被充分认识到的现象，但在甲状腺癌中相对少见。在低分化甲状腺癌（pDTC）患者中，初次就诊时出现碘-131摄取的上腔静脉肿瘤（SVC）血栓并不常见，且可能危及生命。肿瘤血栓可因原发肿块的直接血管扩展或血行播散而形成。混合核素显像可区分这两种情况，这会影响患者的治疗方案。我们展示了一名46岁已确诊pDTC的女性患者在两年时间里上腔静脉血栓演变的有趣病例图像。
