How this will be confirm that which cancer is persist in patient if biopsy report differs....

[kumarpeyush]

....If biopsy report of same piece differs by two different pathologists. In a particular case one report says NHL while other small cell neuroendocrine carcinoma in neck & larynx and CD-20 test is negative. how this will be confirm that which cancer is persist in patient.

[kumarpeyush]

thanks