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Mammographic Detection (mammographic + detection)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

The Effects of Mammographic Detection and Comorbidity on the Survival of Older Women with Breast Cancer

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 6 2002
Carol P. McPherson MSW
OBJECTIVES: To determine an upper age limit or quantifiable level of comorbidity that would render mammography screening ineffectual in decreasing mortality in women aged 65 and older. DESIGN: Retrospective cohort study. SETTING: Upper midwestern United States. PARTICIPANTS: Five thousand one hundred eighty-six predominantly Caucasian women aged 65 to 101 diagnosed with invasive breast cancer from 1986 through 1994. Data were obtained from The Upper Midwest Tumor Registry System, a regional consortium database in Minnesota, North Dakota, and South Dakota. MEASUREMENTS: Relative risks (RRs) of death were computed for patients with mammographically detected tumors, stratified by age and comorbidity. Survival analysis was performed, stratified by level of comorbidity and method of tumor detection. RESULTS: Patients with mammographically detected tumors and no comorbidity experienced significantly lower RRs of death in every age group (range P < .001 to P = .039). Women with mammographically detected tumors and mild to moderate comorbidity had RRs of death as follows: age 65 to 69 (RR = 0.32, 95% confidence interval (CI) = 0.15,0.69), age 70 to 74, (RR = 0.45, 95% CI = 0.22,0.91); age 75 to 79 (RR = 0.47, 95% CI = 0.25,0.88), age 80 and older (RR = 0.52, 95% CI = 0.33,0.80). Women with severe or multiple comorbidities experienced no improvement in survival with mammographically detected tumors. CONCLUSIONS: Mammographic detection of breast cancer may be associated with a significantly decreased risk of death for older women of all ages, even for women with mild to moderate levels of comorbidity, but for older women with severe or multiple comorbidities, mammography is not associated with improvement in overall survival. [source]

Increased mammography use and its impact on earlier breast cancer detection in Vermont, 1975,1999

CANCER, Issue 8 2002
Pamela M. Vacek Ph.D.
Abstract BACKGROUND A trend toward earlier breast carcinoma detection in the United States has been attributed to screening mammography, although direct evidence linking this trend to the increased use of mammography in a general population is lacking. This study examined the effects of mammography on tumor size and axillary lymph node metastasis in Vermont over 25 years. METHODS Pathology and mammography data from 3499 Vermont women who were diagnosed with invasive breast carcinoma during 1975,1984, 1989,1990, and 1995,1999 were compared. Logistic regression analysis was used to estimate the effects of age, mammography use, and period on the odds of a tumor , 2 cm and the odds of negative lymph nodes. RESULTS The proportion of breast tumors that were detected by screening mammography increased from 2% during 1974,1984 to 36% during 1995,1999 (P < 0.001), and these tumors were more likely to measure , 2 cm than tumors that were detected by other methods. Among women age > 50 years, the odds ratio (OR) was 4.5, with a 95% confidence interval (95% CI) of 3.5,6.4. The effect was smaller in younger women (OR, 1.8; 95% CI, 1.1,3.0). Mammographic detection increased the odds of negative lymph nodes by a similar amount in both age groups, although women age > 50 years were more likely to have negative lymph nodes than younger women (OR, 1.3; 95% CI, 1.1,1.6). Tumor size and lymph node metastasis also were related to the number of mammograms and to the mammographic interval. CONCLUSIONS Most of the trend toward earlier detection in Vermont was due to mammography. Mammography had a lesser effect on tumor size among younger women, which may be related to less frequent screening, although its effect on lymph node metastasis was not age dependent. Women age < 50 years were more likely to have positive lymph nodes, independent of the method of detection or the frequency of mammography. Cancer 2002;94:2160,8. © 2002 American Cancer Society. DOI 10.1002/cncr.10459 [source]

Local Recurrence of Breast Cancer in the Stereotactic Core Needle Biopsy Site: Case Reports and Review of the Literature

THE BREAST JOURNAL, Issue 2 2001
Celia Chao MD
Abstract: Early mammographic detection of nonpalpable breast lesions has led to the increasing use of stereotactic core biopsies for tissue diagnosis. Tumor seeding the needle tract is a theorectical concern; the incidence and clinical significance of this potential complication are unknown. We report three cases of subcutaneous breast cancer recurrence at the stereotactic biopsy site after definitive treatment of the primary breast tumor. Two cases were clinically evident and relevant; the third was detected in the preclinical, microscopic state. All three patients underwent multiple passes during stereotactic large-core biopsies (14 gauge needle) followed by modified radical mastectomy. Two patients developed a subcutaneous recurrence at the site of the previous biopsy 12 and 17 months later; one had excision of the skin and dermis at the time of mastectomy revealing tumor cells locally. In summary, clinically relevant recurrence from tumor cells seeding the needle tract is reported in two patients after definitive surgical therapy (without adjuvant radiation therapy). Often, the biopsy site is outside the boundaries of surgical resection. Since the core needle biopsy exit site represents a potential area of malignant seeding and subsequent tumor recurrence, we recommend excising the stereotactic core biopsy tract at the time of definitive surgical resection of the primary tumor. [source]