im so confused, it took 4 years to find this tumour, the tumour in left lung spread to lymph nodes, thickening of lining round lung and pleural effusion, they done biopsy of just lymph nodes on outside near lung and say looks like NHL, how can they say that without doing biopsy of actual tumour in lung. thats the primary spot because the rest showed up 5 weeks later on PET scan, but not on CT scans etc.