The subtypes of<unk>  tumors have different<unk>  systems based on the grade, extent of spread, size and presence of distant metastases. According to WHO histologic grading for<unk>  tumors, the grades of<unk>  tumors are subdivided into Grades 1,2,3 and 4. The lower the grade, better the prognosis.
Brain tumor staging
Brain tumor physical examination
Cancer staging
Lung mass staging
Intracerebral metastases physical examination
Pancoast tumor laboratory tests
Encephalopathy physical examination
Lung cancer staging