SEER Training Modules

T1a NX MX Stage Group UNK

T1a (Tumor 4cm or less in dimension, limited to kidney. Page 324 of TNM 6th edition states "partial nephrectomy seems to be an acceptable treatment for T1a tumors with outcomes comparable to those with radical nephrectomy for this tumor stage.") NX (No lymph nodes removed) MX (Imaging done, but per TNM 6th edition, clinical information can be used to code the pathologic M category if sufficient tissue was removed to code the highest T and highest N categories)