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We included patients with ENL diagnosed from 1998 to 2014, in 17 cancer centers, registered prospectively in the database of the National Adult Cancer Program (PANDA) of the Ministry of Health. Treatment was based on the local protocols for each lymphoma subtype. Extranodal lymphoma was documented in 1215 of 4907 non\u2010Hodgkin lymphomas diagnosed in that period (25%). Median age was 59\u00a0years (range, 16\u201095), and 55% were female. The gastrointestinal (GI) tract was the most common location (38%), followed by the head and neck (24%) and the skin (15%). B\u2010cell lymphomas accounted for 78% of cases, diffuse large B\u2010cell lymphoma being the most common histologic subtype (68%). Mycosis fungoides\/Sezary syndrome was the most frequent T\u2010cell subtype (36%), followed by NK\/T\u2010cell lymphomanasal type (24%). In comparison with western countries, Chile showed a significantly high prevalence of NK\/T\u2010cell lymphoma nasal type, while the frequency of B\u2010cell ENL and the anatomic distribution appeared similar, being GI the most commonly involved site.<\/jats:p>","DOI":"10.1002\/hon.2547","type":"journal-article","created":{"date-parts":[[2018,8,17]],"date-time":"2018-08-17T01:33:29Z","timestamp":1534469609000},"page":"47-53","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Extranodal lymphomas in the public health system in<scp>C<\/scp>hile:<scp>A<\/scp>nalysis of 1251 patients from the<scp>N<\/scp>ational<scp>A<\/scp>dult<scp>C<\/scp>ancer<scp>P<\/scp>rogram"],"prefix":"10.1002","volume":"37","author":[{"given":"Camila","family":"Pe\u00f1a","sequence":"first","affiliation":[{"name":"Medicine Service, Hematology Section, Hospital del Salvador Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moises","family":"Russo","sequence":"additional","affiliation":[{"name":"Radiation Oncology, Fundaci\u00f3n Arturo Lopez Perez, Faculty of Medicine Diego Portales University Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Virginia","family":"Martinez","sequence":"additional","affiliation":[{"name":"Instituto Anatomia Patol\u00f3gica Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9059-3871","authenticated-orcid":false,"given":"Maria Elena","family":"Cabrera","sequence":"additional","affiliation":[{"name":"Medicine Service, Hematology Section, Hospital del Salvador University of Chile Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,9,14]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008313229892"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008282818705"},{"issue":"1","key":"e_1_2_7_4_1","first-page":"10","article-title":"Primary extranodal B\u2010cell lymphoma: current concepts and treatment strategies","volume":"4","author":"Vannata B","year":"2015","journal-title":"Chin Clin Oncol"},{"volume-title":"UICC\u2010TNM Supplement. 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