Table 4.

Malignancy Rates for 1426 Other US-detected Lesions in 2172 Women Screened with US

Note.— Data in parentheses are raw data. These lesions are not described in Table 3.

^*The most common “other” findings were dilated ducts (n = 16), postsurgical collections (n = 11), probable normal variants or fat lobules (n = 8), probable lipomas (n = 8), fat necrosis or oil cysts (n = 6), cysts that were not simple (n = 6), post–vacuum-assisted core biopsy site findings (n = 6), and probable diabetic mastopathy (n = 5).

^†The denominator includes 12 lesions described as multiple bilateral findings (which were not circumscribed masses), none of which were malignant: one postsurgical scar, two lymph nodes, six calcifications without a mass, one intraductal mass, and two “other” lesions.

^‡The denominator includes one benign lesion described as multiple bilateral irregular not-circumscribed masses.