Therefore, patients were classified into different groups according to tumor size; patients with tumors that had diminished by <1 cm, showed no change, or had increased were defined as group A, while patients whose tumor sizes had diminished by >1 cm, or patients who had achieved PCR were defined as group B. The only significant correlation was found between the expression change of mTOR and diminishing tumor size. Here, MTOR is linked to neoplasm.