[Primary lymphoma of the breast. Clinico-pathologic description of a case].

Primary malignant lymphomas of the breast are extremely rare, accounting for only 0.04% to 0.53% of all breast malignancies. Recently a connection between some primary breast lymphomas and mucosa-associated lymphoid tissue (MALT) has been reported identifying an extranodal lymphoma as MALT-type bears some biologic relevance, especially in terms of its spread to other mucosal sites, which sometimes occurs before disseminating into peripheral lymphoid tissue. The Authors report a case of primary breast lymphoma associated with a possible connective disease. Nevertheless the case reported cannot confirm a precise time relationship between malignant lymphomas and autoimmunity, we think that it can be possible.