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Histology and microbiology of both lesions confirmed breast TB. Molecular drug susceptibility testing in both samples revealed no resistance to first line anti-TB drugs and the regimen was maintained for 1\u2009year, with clinical and radiological improvement. Mammary gland involvement usually results from lymphatic extension and differential diagnosis frequently includes breast cancer or bacterial abscess.<\/jats:p>","DOI":"10.1136\/bcr-2018-227014","type":"journal-article","created":{"date-parts":[[2019,2,23]],"date-time":"2019-02-23T04:15:26Z","timestamp":1550895326000},"page":"e227014","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Tuberculosis of the breast: an uncommon presentation of an old disease"],"prefix":"10.1136","volume":"12","author":[{"given":"Maria Antonia","family":"Galego","sequence":"first","affiliation":[{"name":"Pulmonology Department, Unidade Local de Sa\u00fade de Matosinhos E.P.E., Matosinhos, Portugal"}]},{"given":"Gisela","family":"Lage","sequence":"additional","affiliation":[{"name":"Anatomical Pathology Department, Centro Hospitalar de Vila Nova de Gaia\/Espinho E.P.E., Vila Nova de Gaia, Portugal"}]},{"given":"Maria","family":"Shekhovtsova","sequence":"additional","affiliation":[{"name":"Anatomical Pathology Department, Centro Hospitalar de Vila Nova de Gaia\/Espinho E.P.E., Vila Nova de Gaia, Portugal"}]},{"given":"Raquel","family":"Duarte","sequence":"additional","affiliation":[{"name":"Thorax and Circulation Unit, Centro Hospitalar de Vila Nova de Gaia\/Espinho, Vila Nova de Gaia, Portugal"},{"name":"Faculty of Medicine of the University of Porto, Porto, Portugal"},{"name":"Department of Public Health, Forensic Sciences and Medical Education, Faculty of Medicine of the University of Porto, Porto, Portugal"}]}],"member":"239","published-online":{"date-parts":[[2019,2,22]]},"reference":[{"key":"2025082723275171000_12.2.e227014.1","unstructured":"Dire\u00e7\u00e3o-Geral de Sa\u00fade. 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