The 5-year survival rate of colon cancer stage 2a is about 70%, which can vary.
Colon cancer is a malignant tumor caused by various factors such as heredity, gene mutation, poor dietary habits, etc. Stage 2a is the first stage in TNM staging, which represents the situation that the tumor penetrates into the intrinsic muscular layer and invades under the plasma membrane layer; there is no regional lymph node metastasis; and there is no distant metastasis.
In this period, the overall stage is relatively early, the lesions are more limited, and radical surgical resection is usually feasible after diagnosis, after which radiotherapy can be supplemented according to the condition to obtain a 5-year survival rate of about 70%, and the overall prognosis is good. The overall prognosis is good. However, it is still necessary to pay attention to regular follow-up as prescribed by the doctor.