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Rare malignant breast tumors

Jerzy Mituś1, Wojciech M. Wysocki1, Tomasz Wojewoda1, Zbigniew Kojs2

Affiliacja i adres do korespondencji
CURR. GYNECOL. ONCOL. 2011, 9 (1), p. 38-46
Streszczenie

This paper presents a concise discussion of atypical presentations of selected malignant breast tumors, including both tumors of epithelial origin (adenocarcinomas other than ductal carcinoma and lobular carcinoma, which together account for about 10% of malignant breast tumors; this group includes: tubular carcinoma, invasive cribriform carcinoma, “pure” mucinous carcinoma, invasive solid papillary carcinoma, medullary carcinoma, metaplastic carcinoma and Paget cancer), non-epithelial origin (primary sarcoma and primary lymphoma) and mixed tumors (malignant phyllodes tumor – adenomyxoma) and metastases to the breast of tumors originating in other locations (taken together, non-adenomatous tumors account for about 5% of all malignant breast tumors). Summarized are epidemiological data and characteristic features of histological appearance and clinical presentation of selected, rare breast tumors. In total, the so-called atypical forms of breast cancer account for 10-15% of all newly diagnosed cases of malignancies at this location, resulting in 1500-2200 new cases annually in Poland alone. Principles of diagnosis and treatment of these rare entities may be slightly different from those used in typical forms of breast cancer, particularly in the case of non-adenocarcinomatous tumors. Furthermore, the authors emphasize the crucial role of histological verification prior to institution of any treatment in the case of clinical doubt and discordance of data provided by histological and imaging studies and clinical observation (the “triple diagnosis” principle).

Słowa kluczowe
breast cancer, breast sarcoma, breast lymphoma, epidemiology, treatment