Hi everyone, I am new to looking at TCGA data and I think I might have missed something here. I used the Data Matrix option to check out RNASeqV2 samples for LUAD. And selected only "Tumor-macthed normal (TN)" and "Normal - matched tumor(NT)". I was expecting to see the same number of TN and NT since they are supposed to match . However I am seeing a lot more TN than NT.
I checked out the TCGA barcode and did a quick match between TN and NT and found that there are a lot of TNs taht don't have matching patient IDs in NTs. Am I missing anything here? Or if anyone can point me to any information that I should be looking at?
Many thanks in advance!