KRT17 and metastatic malignant neoplasm in the lymph nodes: KRT17 is highly expressed in lung cancer tissues, and the high expression of KRT17 is associated with the histological type (p < 0.001), degree of differentiation (p = 0.011), sex (p < 0.001), age (p = 0.024), and lymph node metastasis (p = 0.04).