lymph nodes

hello all. Hope you are all enjoying life. 

I had an open surgey partial nephrectomoy on my left kidney. The tumor was 12 cm and apparently that is pretty big. i am 22 and very healthy until this happened. anyway surgery went better than expected but im looking online at my health report and it says this: Lungs: No focal consolidation or suspicious pulmonary nodule is

identified. There is a triangular left perifissural nodule measuring 3
mm (series 4, image 29), likely reflecting an intrapulmonary lymph
node

not sure what this means? I have a follow up in 2 weeks should I ask about this?