AUTHOR YEAR No ; pT  STADIUM Classic Methods NO metastasis /lymph nodes Type of clearing method Clearing methods NO metastasis /lymph nodes Pickren [20] 1961 125; T1-2 ---x--- Pickren clearance solution 22 / 223 Haagensen et al. [3] 1972 317; T1-2 ---x--- Pickren clearance solution 1 / 31 Durkin et al. [10] 1980 100; T1 ---x--- Absolute alcohol and shaker 370 / 500 Hartveit [17] 1982 15 ---x--- Clearance solution 1 / 63 Morrow et al. [22] 1984 42; T1-2 22 / 857 Absolute alcohol overnight 33 / 257 Kingsley et al. [18] 1985 100 211 / 2203 Clearance solution 17 / 412 Koren et al. [4] 1997 13 6 / 79 Clearance solution 14 / 84 Sternberg et al. [19] 1997 49; T1-2 143 / 794 Pickren clearing solution 10 / 60 Ustün et al. [21] 1999 30 46 / 150 Clearance solution 10 / 26 Jiang et al. [23] 2007 127 ---x--- Carnoy clearance solution 58 / 879

No = number of patients; T = pathological stage of the tumor

Table 1: Summary of lymph node dissection by the classical method and using fat clearance methods in cases of breast cancer according to the results from the literature.