Number

Age (x ± s²)

Lumpectomy

10

6.2 ± 2.2

Mammectomy

11

10.0 ± 2.3

Regional mastectomy without involvement of cranial abdominal gland

33

8.9 ± 2.2

Regional mastectomy with involvement of cranial abdominal gland

28

10.2 ± 2.5

Radical mastectomy

61

10.5 ± 2.2

Total

143

9.7 ± 2.3