lobular involution


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lobular involution

Regression of breast lobules with age. As breast involution increases, the mammographic density of the breasts decreases, as does the likelihood of breast cancer.
See also: involution
References in periodicals archive ?
The initial benign biopsy showed complete lobular involution (defined as a 75% or greater reduction in the number and size of breast duct lobules) in 5% of the 4,460 young women.
Women with partial lobular involution had a 43% greater than expected breast cancer rate during 20 years of follow-up, whereas those with no involution had a 72% increased rate (P = .001).
Lobular involution is a normal physiological process that happens with aging.