CRP and anemia: Stable 3 summarized the results in the literature, in which elevated leukocytes were reported in 87.5% of the patients, anemia was reported in 87.5% (14/16), C-reactive protein (CRP) and ESR were elevated in 95.4% (21/22) and 63.6% of patients, respectively, and tumor markers CEA and CA199 were elevated in 53.8% and 57.1% of patients, respectively. The results of bacterial culture were reported in 19 patients, with 47.36% (9/19) reporting Escherichia, 26.3% (5/19) of Streptococcus, and 15.8% (3/19) reporting Proteus vulgaris.