{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T18:28:21Z","timestamp":1787509701275,"version":"build-2736575974"},"reference-count":12,"publisher":"BMJ","issue":"9","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,9,9]]},"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:p>Mixed neuroendocrine non-neuroendocrine neoplasms (MiNENs) are rare tumours of gastrointestinal tract, extremely rare in anal canal. We report a case of misdiagnosed MiNEN in a 38-year-old woman initially conservatively treated for a supposed anal fistula. In a second proctological evaluation, biopsy of the anal neoformation was performed and the histological specimen diagnosed a MiNEN. The complete staging showed a disseminate disease and the patient started a chemotherapy schedule. After 6\u2009months, stable disease was revealed at the last imaging performed and radical surgery was offered to the patient that is actually on oncological follow-up without recurrence at 1\u2009year.<\/jats:p>","DOI":"10.1136\/bcr-2021-244737","type":"journal-article","created":{"date-parts":[[2021,9,21]],"date-time":"2021-09-21T13:10:29Z","timestamp":1632229829000},"page":"e244737","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Anal canal mixed adenoneuroendocrine carcinoma in a young patient misdiagnosed as anal abscess"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0891-4689","authenticated-orcid":false,"given":"Roberta","family":"Tutino","sequence":"first","affiliation":[{"name":"Chirurgia 1, Azienda ULSS 2 Marca Trevigiana, Ospedale Regionale Treviso, Treviso, Italy"},{"name":"Dipartimento di discipline chirurgiche, oncologiche e stomatologiche, Universit\u00e0 degli Studi di Palermo, Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enrico","family":"Battistella","sequence":"additional","affiliation":[{"name":"Chirurgia 1, Azienda ULSS 2 Marca Trevigiana, Ospedale Regionale Treviso, Treviso, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luca","family":"Bonariol","sequence":"additional","affiliation":[{"name":"Chirurgia 1, Azienda ULSS 2 Marca Trevigiana, Ospedale Regionale Treviso, Treviso, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Massani","sequence":"additional","affiliation":[{"name":"Chirurgia 1, Azienda ULSS 2 Marca Trevigiana, Ospedale Regionale Treviso, Treviso, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2021,9,21]]},"reference":[{"key":"2025082709151515000_14.9.e244737.1","article-title":"Rectal bleeding and prolapse\u2026 not always benign diseases rather anal cancer. 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