Help Understanding A Dataset About Pancreatic Ductal Adenocarcinoma!

Hi everyone! I’m trying to understand this dataset: (https://www.cancerimagingarchive.net/collection/cptac-pda/) –> it says that the patients have pancreatic ductal adenocarcinoma, but once I downloaded the dataset, it is a complete MESS. It is not organized at all, there are not annotations, the DICOM files don’t make sense, and all the files say NA (which I’m assuming means negative assessment). I don’t have enough time to sit and try to reconstruct/annotate all these DICOM files and it’s honestly just not making sense to me. If anyone has any experience or understand what is going in this dataset it would be greatly appreciated! Thank you so much!