inconclusive PET SCAN

Had a PET Scan on January 2nd after my 6 circle of chymotherapy and results were inconclusive which my consultant was NOT great help in discussing it, only said they have to have meeting with team and then give me result. I have to say that I had one PET Scan done after my 4th circle and it was great as the consultant said cancer is gone. But I am confused now with inconclusive result after my 6th and final circle. I don't know if I mentioned that lymphoma 2/3 stage. I would appreciate your response