Aurangabadkar Hrushikesh U, Palle Lalitha, Ali Zakir
Department of Nuclear Medicine & PET/CT, Basavatarakam Indo-American Cancer Hospital & Research Institute, Hyderabad, India.
Nucl Med Commun. 2013 Jul;34(7):627-37. doi: 10.1097/MNM.0b013e3283618c3b.
Tumour thrombosis (TT) is a very rare but serious complication in oncologic patients. The presence of TT has a significant impact on tumour staging, treatment decisions and prognosis in many malignancies. Current diagnostic techniques show poor ability to differentiate between bland and malignant thrombi; tumour thrombi are also usually inaccessible for biopsies, making their diagnosis difficult. In recent times, fluorine-18 fluorodeoxyglucose PET/computed tomography (F-FDG PET/CT) has well established its role in oncological imaging because of the high metabolic contrast of F-FDG between malignant and normal tissue. Patients with tumour thrombi may benefit from F-FDG PET/CT imaging when TT cannot be diagnosed precisely by other conventional imaging modalities. Here we provide a pictorial review of a few common and unusual sites of tumour thrombus in different malignancies and their patterns of F-FDG uptake.
肿瘤血栓形成（TT）是肿瘤患者中一种非常罕见但严重的并发症。TT的存在对许多恶性肿瘤的肿瘤分期、治疗决策及预后有重大影响。目前的诊断技术区分单纯血栓和恶性血栓的能力较差；肿瘤血栓通常也难以进行活检，这使得其诊断困难。近年来，由于氟-18氟脱氧葡萄糖PET/计算机断层扫描（F-FDG PET/CT）在恶性组织与正常组织之间具有高代谢对比度，它在肿瘤成像中已确立了自己的作用。当其他传统成像方式无法精确诊断TT时，肿瘤血栓患者可能会从F-FDG PET/CT成像中获益。在此，我们对不同恶性肿瘤中一些常见和不常见的肿瘤血栓部位及其F-FDG摄取模式进行影像综述。
