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Table 2 Average mammographic density and location of DCIS by 'mammographic quadrant' of the breast

From: Greatly increased occurrence of breast cancers in areas of mammographically dense tissue

Mammographic quadrant

  

CC

MLO

Density (%; mean ± SE)

Number of DCIS lesions

L

S

55.8 ± 4.2

17

M

S

47.9 ± 4.0

5

L

I

46.2 ± 4.0

4

M

I

38.3 ± 4.0

2

  1. CC, cranio-caudal; DCIS, ductal carcinoma in situ; I, inferior; L, lateral; M, medial; MLO, mediolateral-oblique; S, superior; SE, standard error.