Marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) lymphomas of the breast with mammary amyloidosis are exceedingly rare entities. This report describes the case of women with long-standing Sjögren’s syndrome presenting with breast MALT lymphoma and amyloïd light-chain (AL) amyloidosis. Breast microcalcification needle biopsy made the positive diagnosis. This unusual finding should be kept in mind. It emphasises the need for careful clinical examination of nodes and extranodal organs supposedly affected in patients with autoimmune disease.

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fibrosis and V20 (p Z 0.019), MLD (p Z 0.020) and regional lymphatic irradiation (p Z 0.030). V20 (p<0,001), MLD (p<0,001), regional lymphatic irradiation (p Z 0,030) and use of hormonotherapy (p<0,001) were effective in the formation of lung fibrosis in the 2nd year. Patients who received tamoxifen had more grade 2 fibrosis at the end of the second year than the patients who received control and aromatase inhibitors evaluated of hormone therapy(p<0,001). No relation was found between menopause status, age and taxane group chemotherapy and lung fibrosis development. Conclusion: The use of tamoxifen in patients receiving adjuvant radiotherapy for breast cancer increases the early and late lung fibrosis more than the aromatase inhibitors. However, V20, MLD, and regional lymph node irradiation also contribute to the frequency of fibrosis.