Navigation Links
Greater Breast Density May Raise Cancer Risk
Date:7/27/2011

WEDNESDAY, July 27 (HealthDay News) -- Greater breast density is associated with an increased risk of breast cancer and certain aggressive tumor traits, new research says.

In the study, published in the July 27 online edition of the Journal of the National Cancer Institute, researchers used mammography to compare breast density in 1,042 postmenopausal women with breast cancer and a control group of 1,794 postmenopausal women without breast cancer.

Breast density on mammograms is determined by the proportions of fat, connective tissue and epithelial tissue in the breast. Previous research has shown that women with higher amounts of epithelial and stromal tissue have more density and higher risk of breast cancer. But it hasn't been clear whether breast density is associated with specific tumor characteristics and tumor type.

As expected, this new study found that breast cancer risk rose progressively with increasing breast density. The researchers also found that the link between density and breast cancer was stronger for larger tumors than for smaller tumors, for high-grade tumors compared to low-grade tumors, for estrogen receptor-negative tumors than for estrogen receptor-positive tumors, and for ductal carcinoma in situ (DCIS) tumors than for invasive tumors.

There was no association between breast density and other markers of tumor aggressiveness, including nodal involvement and HER2 status, the study authors noted in a journal news release.

"Our results suggest that breast density influences the risk of breast cancer subtypes by potentially different mechanisms," wrote Rulla M. Tamimi, of Harvard Medical School and Brigham and Women's Hospital in Boston, and colleagues.

"Further studies are warranted to explain underlying biological processes and elucidate the possible pathways from high breast density to the specific subtypes of breast carcinoma," the authors added.

More information

The American Cancer Society has more about breast cancer.

-- Robert Preidt

SOURCE: Journal of the National Cancer Institute, news release, July 27, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Akron Institute of Herzing University Launches Its First Bachelors Degree Programs to Prepare Students for Even Greater Success in Business, Health Care and IT
2. Chronic Migraines Take a Greater Toll
3. Overweight middle-aged adults at greater risk for cognitive decline in later life
4. Lumension Enhances Compliance and IT Risk Management Solution for Greater IT GRC Efficiency
5. Marathoners Face Greater Risk of Artery Stiffness
6. Marathoners Face Greater Risk of Artery Problems
7. Progress In Access To Safe Drinking-Water; Sanitation Needs Greater Efforts
8. Greater Wichita EDC Launches New Custom Designed GIS Database
9. Community acquired MRSA infection rates are 6 times greater in HIV patients
10. Cleveland Cavalier Darnell Jackson teams with Big Brothers Big Sisters of Greater Cleveland to Issue “Mentoring Challenge”
11. O'Lyn Roofing Contractors, Inc. Brings Professional and Eco-Friendly Roof Cleaning Services to Greater Boston MA Area Just in Time for Spring
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Greater Breast Density May Raise Cancer Risk
(Date:10/13/2017)... ... October 13, 2017 , ... ... process to promote standards of excellence for the field of eating disorders, announces ... 22 – 25, 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Apple Rehab ... services, staged a mock evacuation of the facility as part of a disaster drill ... Department, Echo Hose EMS and Shelton City Emergency Manager, as well as the ...
(Date:10/13/2017)... ... 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run brought ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at ... towards children of all ages; it is a non-competitive, non-timed event, which is all ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a missionary ... Journey: From the Mountains to the Mission Field” is the creation of published author, ... ages and currently teaches a class of ladies at her church, which she has ...
(Date:10/12/2017)... LA (PRWEB) , ... October 12, 2017 , ... Planet ... in the U.S., announced today its plans to open a flagship location in Covington, ... occupy the former Rooms To Go store next to Office Depot in the Holiday ...
Breaking Medicine News(10 mins):
(Date:10/7/2017)... Oct. 6, 2017   Provista, a proven ... $100 billion in purchasing power, today announced a new ... The Newsroom is the online home for ... infographics, expert bios, news releases, slideshows and events. ... a wealth of resources at their fingertips, viewers can ...
(Date:10/4/2017)... Oct. 4, 2017  South Korean-based healthcare product Development ... aide "cprCUBE" on Kickstarter. The device will educate the ... arrests with better efficiency compared to the dated and ... feedback on efficacy of the compression for a more ... a goal to raise $5,000. ...
(Date:10/4/2017)... OBP Medical , a leading ... today announced regulatory approval from Brazil,s ... Nacional de Vigilância Sanitária (ANVISA)) to market ... with integrated LED light source and smoke evacuation ... of a tissue pocket or cavity during surgical ...
Breaking Medicine Technology: