Hi...mere Right Chest Me Plueral Fluid Nikala Gya Tha June

Hi...mere right chest me plueral fluid nikala gya tha june me or mere body me pet ke uper ek gaanth h jo 7.5 by 5 cm h doctor's lymphoma bta rhe h . Gaanth ki Biopsy bhi ki ,bone marrow test bhi hua canser test bhi hua or tb test bhi but sab negative reports h . Mujhe kya krna chahiye. Jbki doctor's tb ki tablets shuru krne ko bol rhe h gaanth khatm krne ke liye.