{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T05:56:55Z","timestamp":1775887015658,"version":"3.50.1"},"reference-count":16,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T00:00:00Z","timestamp":1775779200000},"content-version":"vor","delay-in-days":99,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Case Reports in Pathology"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Collision tumors are neoplasms in which two histologically different and topographically independent tumors are joined within the same mass. The aim of this paper is to present a rare case of collision carcinoma of the larynx (squamous cell and small\u2010cell neuroendocrine carcinoma).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Report\u2014Diagnosis\/Treatment<\/jats:title>\n                    <jats:p>A 72\u2010year\u2010old patient was reported to our clinic because of hoarseness, dyspnea, and dysphagia. Neck CT showed a right\u2010sided laryngeal tumor. The patient underwent total laryngectomy, partial pharyngectomy, and right\u2010sided thyroidectomy with bilateral selective neck dissection. A clear collision of two morphologically and immunohistochemically different components of the tumor was seen on the sections sampled from the aryepiglottic fold.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This case highlights the critical importance of obtaining multiple samples during tumor biopsy and emphasizes the role of detailed immunohistochemical staining. Considering the differences in histology, it is difficult to propose guidelines for treatment of these cancers.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/crip\/6630405","type":"journal-article","created":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T05:41:55Z","timestamp":1775886115000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Collision of Hypopharyngeal Small\u2010Cell Neuroendocrine Carcinoma and Laryngeal Squamous Cell Carcinoma at the Aryepiglottic Fold: Case Report and Review of 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