{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,29]],"date-time":"2025-08-29T10:01:40Z","timestamp":1756461700128,"version":"3.40.4"},"reference-count":9,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:p>Renal cell carcinoma (RCC) metastasis can involve any organ. Head metastasis are rare, namely tongue, scalp and nose and only a few cases have been described. The authors describe three cases of unusual presentation of head metastasis of RCC. In case 1, a 50-year-old man with RCC underwent left nephrectomy, and presented 16\u2005months later with nasal metastasis. In case 2, a 64-year-old woman with RCC operated 12\u2005years ago, relapsed at multiple sites including scalp, which was treated surgically. In case 3, a 47-year-old man with RCC developed metastasis in multiple organs including a mass on the tongue that was operated and was compatible with primary tumour metastasis. These cases show the importance of correct diagnosis of rare presentations and local treatment of metastasis of RCC.<\/jats:p>","DOI":"10.1136\/bcr-2013-200004","type":"journal-article","created":{"date-parts":[[2013,12,10]],"date-time":"2013-12-10T12:17:45Z","timestamp":1386677865000},"page":"bcr2013200004","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Unusual head metastasis of kidney cancer"],"prefix":"10.1136","volume":"2013","author":[{"given":"M","family":"Matias","sequence":"first","affiliation":[]},{"given":"M","family":"Casa-Nova","sequence":"additional","affiliation":[]},{"given":"J","family":"Borges-Costa","sequence":"additional","affiliation":[]},{"given":"L","family":"Ribeiro","sequence":"additional","affiliation":[]}],"member":"239","published-online":{"date-parts":[[2013,12,10]]},"reference":[{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.1","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/S0147-0272(97)80007-4","article-title":"Renal cell carcinoma","volume":"21","author":"Motzer","year":"1997","journal-title":"Curr Probl Cancer"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.2","doi-asserted-by":"publisher","DOI":"10.1186\/1752-1947-2-249"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.3","doi-asserted-by":"publisher","DOI":"10.1093\/ndt\/gfl772"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.4","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/j.urology.2005.07.052","article-title":"Metastatic renal cell carcinoma to the nose and ethmoid sinus","volume":"67","author":"Ziari","year":"2006","journal-title":"Urology"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.5","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1288\/00005537-196604000-00003","article-title":"Metastatic tumors to the maxilla, nose and paranasal sinuses","volume":"76","author":"Bernstein","year":"1966","journal-title":"Laryngoscope"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.6","first-page":"616","article-title":"Head and neck metastases from renal carcinomas","volume":"70","author":"Boles","year":"1971","journal-title":"Mich Med"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.7","doi-asserted-by":"publisher","DOI":"10.1067\/mhn.2000.100500"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.8","doi-asserted-by":"publisher","DOI":"10.1016\/j.anorl.2010.11.003"},{"key":"2025042709470983000_2013.dec10_1.bcr2013200004.9","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(09)60229-4"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2013-200004","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,27]],"date-time":"2025-04-27T16:47:18Z","timestamp":1745772438000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2013-200004"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,12,10]]},"references-count":9,"alternative-id":["10.1136\/bcr-2013-200004"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2013-200004","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2013,12,10]]}}}