This is cut and paste from a medical journal. Hard to read but the bottom line appears to be that this type of breast cancer is rare and aggressive. You might try some breast cancer organization sites for treatment options and more info.
Squamous Cell Carcinoma of the Breast
Bryan T. Hennessy, Savitri Krishnamurthy, Sharon Giordano, Thomas A. Buchholz, Shu W. Kau, Zhigang Duan, Vicente Valero, Gabriel N. Hortobagyi
From the Departments of Breast Medical Oncology, Pathology, and Radiation Therapy, The University of Texas M.D. Anderson Cancer Center, Houston, TX
Address reprint requests to Bryan Hennessy, MD, Dept of Medical Oncology, Box 10, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030; e-mail: ***@****
PURPOSE: Squamous cell carcinoma (SCC) of the breast is rare and generally aggressive. In this study, we analyzed 33 patients treated at The University of Texas M.D. Anderson Cancer Center (Houston, TX) and a series of 137 patients identified through the Surveillance, Epidemiology, and End Results (SEER) database to make therapy recommendations.
METHODS: Records of The University of Texas M.D. Anderson Cancer Center were searched for patients diagnosed with breast SCC from 1985 to 2001. All biopsy material was reviewed by a dedicated breast pathologist who performed immunohistochemistry for hormone receptors and the epidermal growth factor receptor (EGFR). We searched the SEER database for patients with breast SCC diagnosed between 1988 and 2001.
RESULTS: We identified 33 patients with breast SCC, of whom two patients had metastatic disease at diagnosis. The median relapse-free survival (RFS) of 31 patients with localized disease was 20 months (range, 1 to 108 months), with a 26% RFS rate at 5 years. The median overall survival in these patients was 37 months (range, 12 to 108 months), with 40% surviving at 5 years. Median survival from the time recurrent disease was recognized was 14 months (range, 2 to 86 months). Tumors were usually hormone receptor–and HER2/neu-negative, though EGFR was frequently overexpressed. Information from the SEER database was consistent with most of our findings.
CONCLUSION: SCC of the breast is aggressive and often treatment-refractory. The role of platinum salts, EGFR inhibitors, and other novel agents needs to be explored.
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