Male breast cancer: Report of 2 cases

Abstract

Male breast cancer (MBC) is a rare neoplasm and diagnosed in less than 1% of all malignant tumors [1]. It also accounts for less than 1% of all breast cancers. It has been estimated that it affects around 1/100000 men per year [2]. However, the frequency of diagnosed MBC has been steadily increasing over past few decades [3]. The risk of developing breast cancer in men within a population is about 125 lower when compared to breast cancer in women [4]. The male breast cancer may also appear bilaterally, although it is extremely rare (0,5-2,5% of all MBC) [5]. There is a lack of research based on large groups of patients of prospective studies due to the rare occurrence of male breast cancer, hence each study seems to increase the knowledge on this subject matter. The two cases of patients described by us are part of the discussion.