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Clinical Value of Mammography in the Evaluation of Palpable Breast Lumps in Women 30 Years Old and Older.
AJR. American Journal of Roentgenology 2017 October
OBJECTIVE: The purpose of this study was to determine whether mammography adds clinical value in the diagnostic imaging workup of women 30 years old and older who present with palpable breast lumps.
MATERIALS AND METHODS: We retrospectively identified the records of all women 30 years old and older who underwent imaging evaluation with mammography and ultrasound for a palpable lump between January 1, 2009, and December 31, 2010. Imaging reports were reviewed for findings related to the lump and for incidental nonpalpable findings. Benign versus malignant outcomes were determined by pathologic analysis or 24-month imaging or clinical follow-up. The contribution of mammography to final diagnosis was assessed on the basis of objective criteria to determine the clinical impact of mammographic findings.
RESULTS: The study cohort included 861 patients presenting with 935 palpable lumps. Imaging correlates were reported for 568 of 935 (60.7%) lumps, and imaging findings were negative in 367 of 935 (39.3%). Of the 935 palpable lumps, 858 (91.8%) were benign and 77 (8.2%) were malignant. Mammography added clinical value in the evaluation of 27 of 77 (35.0%) malignant lumps by better delineating extent of disease and in the evaluation of 26 of 858 benign lumps (3.0%) by confirming benignity. Fifty-two of 861 (6.0%) patients had incidental findings that led to a recommendation for biopsy. Twenty-nine of the 52 findings were originally seen with mammography and 23 with ultrasound. Mammography also depicted seven incidental malignancies in nonpalpable areas, and ultrasound depicted one incidental malignancy.
CONCLUSION: Adjunct mammography is warranted for evaluation of palpable breast lumps in women 30 years old and older because of the value added to clinical management. In all age cohorts, mammography contributed to delineation of disease extent, detection of incidental malignancies, and confirmation of benign diagnoses.
MATERIALS AND METHODS: We retrospectively identified the records of all women 30 years old and older who underwent imaging evaluation with mammography and ultrasound for a palpable lump between January 1, 2009, and December 31, 2010. Imaging reports were reviewed for findings related to the lump and for incidental nonpalpable findings. Benign versus malignant outcomes were determined by pathologic analysis or 24-month imaging or clinical follow-up. The contribution of mammography to final diagnosis was assessed on the basis of objective criteria to determine the clinical impact of mammographic findings.
RESULTS: The study cohort included 861 patients presenting with 935 palpable lumps. Imaging correlates were reported for 568 of 935 (60.7%) lumps, and imaging findings were negative in 367 of 935 (39.3%). Of the 935 palpable lumps, 858 (91.8%) were benign and 77 (8.2%) were malignant. Mammography added clinical value in the evaluation of 27 of 77 (35.0%) malignant lumps by better delineating extent of disease and in the evaluation of 26 of 858 benign lumps (3.0%) by confirming benignity. Fifty-two of 861 (6.0%) patients had incidental findings that led to a recommendation for biopsy. Twenty-nine of the 52 findings were originally seen with mammography and 23 with ultrasound. Mammography also depicted seven incidental malignancies in nonpalpable areas, and ultrasound depicted one incidental malignancy.
CONCLUSION: Adjunct mammography is warranted for evaluation of palpable breast lumps in women 30 years old and older because of the value added to clinical management. In all age cohorts, mammography contributed to delineation of disease extent, detection of incidental malignancies, and confirmation of benign diagnoses.
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