Contrast tomography (CT) performed to detect nodal metastasis for high-risk cutaneous squamous cell carcinomas of the head and neck has a high negative predictive value but a poor positive predictive value

对比增强CT用于检测头颈部高危皮肤鳞状细胞癌的淋巴结转移，其阴性预测值较高，但阳性预测值较低。