Pure Ductal Carcinoma in Situ in The Male Breast: A Rare Entity

Abstract

Pure ductal carcinoma in situ of male breast (DCIS) is extremely rare. Only a few cases have been reported until now. Its treatment is not wellestablished. Prognosis is as good as in women. In this study, we reported 3 cases of pure ductal carcinoma in situ in the male breast. The mean ageof DCIS patients was 58.3 years. The main symptom was a breast mass. The median size of the tumor was 25 mm. Two patients had an axillarylymph node. The left side was reached in 2 cases. All of the patients underwent mastectomy. The histopathological assessment showed papillary,cribriform, and comedocarcinoma in situ. There was no evidence of invasive carcinoma. In one case, the DCIS was associated with Paget'sdisease of the nipple. One patient received hormonotherapy. The time of follow-up ranged between 6 and 117 months. One patient developedan invasive recurrence.