The goal of this study is to evaluate the Salah Azaïz Cancer Institute male breast cancer patients population over a period of 14 years.

Goal of the retrospective part: to gather clinicopathologic data and follow-up outcomes of male breast cancer patients diagnosed and/or treated at Salah Azaïz Cancer Institute from 2004 to 2013.

Goal of the prospective part: to create a registry of male patients with breast cancer for a period of 48 months (from 2014 to 2017).

Inclusion Criteria:

Histological diagnosis of male breast cancer

Retrospective part: All men with histologically proven invasive breast carcinoma diagnosed between 2004 and 2013.

Prospective part: All men with histologically proven invasive breast carcinoma diagnosed between 2014 and 2017.