Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
Clin Colorectal Cancer. 2009 Jul;8(3):172-4. doi: 10.3816/CCC.2009.n.029.
When patients with colorectal cancer are monitored after resection of primary or metastatic disease, an elevated carcinoembryonic antigen (CEA) level is usually an indicator of recurrent disease. Positron emission tomography (PET) scans are often used to locate the site of recurrences when computed tomography scans do not show the presence of disease. This case highlights an important cause of a falsely elevated CEA with abnormal PET imaging.
当结直肠癌患者在原发性或转移性疾病切除后进行监测时，癌胚抗原（CEA）水平升高通常是疾病复发的指标。当计算机断层扫描（CT）未显示疾病存在时，通常使用正电子发射断层扫描（PET）扫描来定位复发部位。本病例突出了一个导致 CEA 假阳性升高和 PET 成像异常的重要原因。
