MARIA J. MERINO, M.D.; VIRGINIA A. LIVOLSI, M.D.
To the editor: We read with interest the paper by Popp and associates "Extrahepatic Biliary Obstruction Caused by Metastatic Breast Carcinoma," which appeared in your October 1979 issue (1). The authors state that each patient had proven "invasive adenocarcinoma of the female breast." The type of carcinoma is not further identified.
Such information would be important data to publish. Our own studies of breast cancer and those of others (2) indicate that serosal, retroperitoneal, and gastrointestinal metastases are found much more commonly with lobular carcinoma (especially signet-ring variety) (3) than with ductal cancer. Most large series indicate that ductal cancer
MARIA J. MERINO, VIRGINIA A. LIVOLSI. Extrahepatic Biliary Obstruction from Metastatic Breast Carcinoma. Ann Intern Med. 1980;92:716. doi: 10.7326/0003-4819-92-5-716_1
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Published: Ann Intern Med. 1980;92(5):716.
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