N1 Single lymph node metastasis, 2 cm or less in greatest dimension N1 Single regional lymph node metastasis in the true pelvis (hypogastric, obturator, external iliac or presacral lymph node) N2 ...

You might have surgery to remove lymph nodes in your tummy (abdomen). These are called the retroperitoneal lymph nodes. This operation is called a retroperitoneal lymph node dissection. This is a ...