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A 73\u00a0year-old man was incidentally found to have a 13\u00a0mm hypoechoic mass in the pancreatic body on transabdominal ultrasonography. CT showed delayed enhancement, and MRI demonstrated hypointensity on T1, slight hyperintensity on T2, and hyperintensity on diffusion-weighted imaging (DWI). On endoscopic ultrasonography (EUS), the lesion appeared as a 13\u00a0mm hypoechoic mass, and contrast-enhanced EUS revealed gradual isoenhancement beginning 17\u00a0s after contrast injection. Another 6\u00a0mm hypoechoic lesion was identified in the pancreatic tail on EUS, and contrast-enhanced EUS showed rapid hyperenhancement beginning 12\u00a0s after contrast injection. EUS-guided fine-needle aspiration (EUS-FNA) was performed for both lesions, which were diagnosed as schwannoma and Grade 1 neuroendocrine tumor, respectively. A strategy of observation was adopted for both tumors. This is a rare case of concomitant pancreatic schwannoma and NET. EUS contributed to the detection of a small NET, while contrast-enhanced EUS revealed different vascular patterns between the two lesions, leading to a decision to perform EUS-FNA for both tumors.<\/jats:p>","DOI":"10.1007\/s12328-026-02361-w","type":"journal-article","created":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T05:14:39Z","timestamp":1780982079000},"page":"955-960","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Contrast-enhanced endoscopic ultrasonography differentiated pancreatic schwannoma from concurrent neuroendocrine tumor"],"prefix":"10.1007","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1135-2861","authenticated-orcid":false,"given":"Yumiko","family":"Yamashita","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiji","family":"Hanada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasutaka","family":"Ishii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akinori","family":"Shimizu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuro","family":"Hirano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuhiro","family":"Okuda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuji","family":"Yonehara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shinji","family":"Tanaka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiro","family":"Oka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,6,9]]},"reference":[{"key":"2361_CR1","doi-asserted-by":"publisher","first-page":"331","DOI":"10.1007\/978-3-031-23705-8_12","volume":"1405","author":"V Gerganov","year":"2023","unstructured":"Gerganov V, Petrov M, Sakelarova T. 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