Several blood markers are routinely assessed before and during routine clinical treatments and represent oxygenation status (e.g., hemoglobin), kidney function (e.g., glomerular filtration rate [GFR] and creatinine), systemic inflammation (e.g., C-reactive protein [CRP] and leukocytes), nutrition status (e.g., albumin) and tumor burden (e.g., lactate dehydrogenase [LDH]). This evidence concerns the gene CRP and neoplasm.