American Journal of Roentgenology, Vol 159, 493-495, Copyright © 1992 by American Roentgen Ray Society

ARTICLES

Mammography in women with axillary lymphadenopathy and normal breasts on physical examination: value in detecting occult breast carcinoma

AJ Leibman and MB Kossoff
Department of Radiology, Emory University School of Medicine, Atlanta, GA.

OBJECTIVE. The purpose of this study was to determine the value of mammography in detecting occult carcinoma in patients with axillary adenopathy and normal breasts on physical examination. MATERIALS AND METHODS. We analyzed the results of mammography performed in 17 patients; all women had palpable axillary lymphadenopathy of unknown origin and all had normal breasts on physical examination. RESULTS. In 10 of the 17 patients, mammographic findings were abnormal. The mammographic finding of axillary adenopathy in seven patients was inconsequential because the nodes were evident on physical examination. Three patients had abnormal mammographic findings that were potentially significant, including one with a poorly defined mass suggestive of breast carcinoma, one with a subcutaneous nodule, and one with parenchymal breast edema. Two of 17 patients had an occult breast cancer. In only one of the patients was the cancer detected on mammography. The other patient had undergone prior left mastectomy and was thought to have metastases to the right axilla from the contralateral breast. Mammographic findings in this latter patient were normal. CONCLUSION. While occult breast carcinoma was relatively common in our series (two of 17 patients), the ability to detect the tumor with mammography was disappointing (one of two patients). This may be explained by the fact that one postmastectomy patient with occult carcinoma had metastatic disease to the contralateral axilla and a normal remaining breast, which was pathologically confirmed at mastectomy. Our experience suggests that mammography is valuable in patients with normal breasts on physical examination who have primary carcinoma involving ipsilateral axillary lymph nodes. The procedure should be included in the diagnostic evaluation of patients with axillary adenopathy in order to detect the unusual case of occult breast carcinoma.
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