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Histopathological examination and immunohistochemistry confirmed metastatic invasive ductal carcinoma, displaying a morphological and receptor profile congruent with her primary tumour. This case highlights the potential for late and atypical metastatic presentations of breast cancer and underlines the importance of maintaining diagnostic vigilance in long-term survivors.<\/jats:p>","DOI":"10.1136\/bcr-2025-269666","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T11:05:11Z","timestamp":1781089511000},"page":"e269666","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Subcutaneous contralateral upper limb metastasis in invasive breast ductal carcinoma: a rare presentation"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-4204-4521","authenticated-orcid":false,"given":"Isa","family":"Aljunied","sequence":"first","affiliation":[{"name":"Breast Surgery, Galway University Hospital, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tlamelo","family":"Malima","sequence":"additional","affiliation":[{"name":"Breast Surgery, Galway University Hospital, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caitlin","family":"Waters","sequence":"additional","affiliation":[{"name":"Breast Surgery, Galway University Hospital, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kate","family":"Richards","sequence":"additional","affiliation":[{"name":"Department of Histopathology, Galway University Hospitals, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6839-4339","authenticated-orcid":false,"given":"Sami Medani","family":"Abd Elwahab","sequence":"additional","affiliation":[{"name":"Breast Surgery, Galway University Hospital, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin","family":"Barry","sequence":"additional","affiliation":[{"name":"Breast Surgery, Galway University Hospital, Galway, County Galway, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,6,10]]},"reference":[{"key":"2026061004050574000_19.6.e269666.1","doi-asserted-by":"publisher","DOI":"10.3322\/caac.21660"},{"key":"2026061004050574000_19.6.e269666.2","unstructured":"Lakhani SR , Ellis IO , Schnitt SJ , et al . 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