NED ?

Had my (almost) 1 year CT Chest, Abdomen and Pelvis.  All clear! Until the end of the report which states an enlarged lymph node, cannot ruke out metastatic disease. Urologist says no worries it is less then 1 cm and “we don’t worry unless larger then 1 cm”. Report also states unchanged from previous CT. However on previous CT the lymph node was not mentioned.  Does anyone have any experience with this?  I’m not sure if I need a second opinion.  Thank you!