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In men, only 11 cases, including this case, have been reported. In this article, we present a case of left breast DFSP that occurred in a 44-year-old man. The physical examination revealed a left breast tender mass, which invaded the skin. The tumor was staged as T4b N0 M0. Mammography and sonography showed a suspect mass of the left breast. The biopsy and immunochemistry permitted the diagnosis of DFSP of the left breast. The patient had a left mammectomy, with free margins. He presents no evident sign of recurrence 7 months later.<\/jats:p>","DOI":"10.1177\/2324709619875634","type":"journal-article","created":{"date-parts":[[2019,9,16]],"date-time":"2019-09-16T00:34:22Z","timestamp":1568594062000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Dermatofibrosarcoma Protuberans of the Breast in Man: An Extremely Rare Entity With a Review of the Literature"],"prefix":"10.1177","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5913-911X","authenticated-orcid":false,"given":"Malek","family":"Bouhani","sequence":"first","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasmine","family":"Fertani","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7244-8248","authenticated-orcid":false,"given":"Ines","family":"Zemni","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olfa","family":"Adouni","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amine","family":"Bouida","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Riadh","family":"Chargui","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rahal","family":"Khaled","sequence":"additional","affiliation":[{"name":"Salah Azaiz Institute, Tunis, Tunisia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,9,15]]},"reference":[{"key":"bibr1-2324709619875634","first-page":"384","volume":"8","author":"Taylor RW.","year":"1890","journal-title":"J Cutan Genitourin Disord"},{"key":"bibr2-2324709619875634","first-page":"545","volume":"5","author":"Ferrand M.","year":"1924","journal-title":"Ann Dermatol Syphiligr"},{"key":"bibr3-2324709619875634","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1159\/000250699","volume":"43","author":"Hoffman E.","year":"1925","journal-title":"Dermatol Ztschr"},{"key":"bibr4-2324709619875634","doi-asserted-by":"publisher","DOI":"10.1186\/s12957-015-0562-1"},{"key":"bibr5-2324709619875634","unstructured":"Weiss SW, Goldblum JR. 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