{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T13:32:30Z","timestamp":1784640750846,"version":"3.55.0"},"reference-count":11,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2007,4,10]],"date-time":"2007-04-10T00:00:00Z","timestamp":1176163200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostic Cytopathology"],"published-print":{"date-parts":[[2007,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Simultaneous involvement of the same anatomical site by two different primary malignant tumors is rare. Cases of hematopoietic malignancies associated with breast and skin neoplasms have been described. The association of chronic lymphocytic leukemia (CLL) and Merkel cell carcinoma (MCC) has been established, although the cause for this association is still unclear. There are reports of MCC metastatic to lymph nodes involved by CLL. We report the case of a 57\u2010year\u2010old man with history of CLL with concurrent involvement of the arm by CLL and MCC diagnosed on fine\u2010needle aspiration biopsy (FNA). To our knowledge, this is the first reported case of such tumors colliding in a nonlymphoid site, diagnosed by FNA in the English literature. Diagn. Cytopathol. 2007; 35:293\u2013295. \u00a9 2007 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/dc.20616","type":"journal-article","created":{"date-parts":[[2007,4,10]],"date-time":"2007-04-10T21:17:47Z","timestamp":1176239867000},"page":"293-295","source":"Crossref","is-referenced-by-count":26,"title":["Merkel cell carcinoma and chronic lymphocytic leukemia (collision tumor) of the arm: A diagnosis by fine\u2010needle aspiration biopsy"],"prefix":"10.1002","volume":"35","author":[{"given":"Julieta E.","family":"Barroeta","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tunde","family":"Farkas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,4,10]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/00001622-200001000-00004"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2133.2004.05982.x"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2559.1999.00555.x"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1136\/jcp.56.12.970"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.coc.0000037108.86294.5E"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2407-5-106"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2133.2000.03370.x"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007890-199912150-00015"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1067\/mjd.2001.114732"},{"key":"e_1_2_1_11_2","doi-asserted-by":"crossref","first-page":"541","DOI":"10.5858\/2001-125-0541-CTCCAH","article-title":"Combined tall cell carcinoma and Hurthle cell carcinoma (Collision tumor) of the thyroid","volume":"125","author":"Baloch ZW","year":"2001","journal-title":"Arch Pathol Lab Med"},{"key":"e_1_2_1_12_2","doi-asserted-by":"crossref","first-page":"99","DOI":"10.5858\/2004-128-99-AUCTIB","article-title":"A unique collision tumor in breast: Invasive ductal carcinoma and mucosa\u2010associated lymphoid tissue lymphoma","volume":"128","author":"Susnik B","year":"2004","journal-title":"Arch Pathol Lab Med"}],"container-title":["Diagnostic Cytopathology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fdc.20616","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/dc.20616","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,15]],"date-time":"2023-11-15T19:49:16Z","timestamp":1700077756000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/dc.20616"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,4,10]]},"references-count":11,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2007,5]]}},"alternative-id":["10.1002\/dc.20616"],"URL":"https:\/\/doi.org\/10.1002\/dc.20616","archive":["Portico"],"relation":{},"ISSN":["8755-1039","1097-0339"],"issn-type":[{"value":"8755-1039","type":"print"},{"value":"1097-0339","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,4,10]]}}}