Table 1 Clinicopathological data of the 30 phyllodes tumors studied

From: Phyllodes tumors of the breast segregate in two groups according to genetic criteria

 

Benign (n=9) (median (min-max))

Borderline (n=12) (median (min-max))

Malignant (n=9) (median([min-max))

P-value

Age (years)

36 (22–50)

46 (22–74)

54 (47–64)

0.007

Tumor size (mm)

40 (20–70)

45 (10–200)

60 (20–250)

0.4

Stromal cellularitya

85 (52–147)

152 (53–250)

210 (95–358)

<10−3

Stromal overgrowthb

11 (6–30)

5.6 (2–15)

3 (1–17)

0.023

Nuclei size (μm2)

41 (35–53)

58 (42–146)

85 (55–173)

<10−3

Mitotic ratec

1 (0–9)

5.5 (2–17)

18 (5–50)

<10−3

  1. Abbreviations: B, benign; BL, borderline; I, infiltrative; M, malignant; P, pushing.
  2. aNumber of stromal cells per HPF.
  3. bNumber of epithelial sections per mm2.
  4. cNumber of mitotic figures per 10 HPF.
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