A patient diagnosed with carcinoma of the cheek presents with a 2.5 cm tumor located near and involving the lower alveolus. Additionally, a single, mobile lymph node on the same side measuring 6 cm is palpable. What is the TNM staging of this tumor based on these clinical findings?
Explanation
The tumor size of 2.5 cm corresponds to T2, and the presence of a single mobile lymph node larger than 3 cm on the same side indicates N2. Since there is no distant metastasis, M0 applies. Therefore, the correct TNM classification is T2 N2 M0.