<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-18T18:21:17Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/10135" metadataPrefix="dim">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/10135</identifier><datestamp>2025-02-01T01:05:44Z</datestamp><setSpec>com_10259_6688</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_6689</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
<dim:field mdschema="dc" element="contributor" qualifier="author" authority="a079df74-1161-4c2d-8a23-76a03c4a376c" confidence="600" orcid_id="">Reoyo Pascual, José Felipe</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="author" authority="33239012-82c9-45ce-a43b-dac9cc09adc8" confidence="600" orcid_id="">Alonso Alonso, Evelio</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="author" authority="cddd221f-1c14-4746-9d38-7a47f4108c46" confidence="600" orcid_id="">Polanco Pérez, Lucía</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="author" authority="6fd3cb5a-b9d8-4979-9953-27d8602e2151" confidence="600" orcid_id="">Álvarez Rico, Miguel Ángel</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned">2025-01-31T14:08:00Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="available">2025-01-31T14:08:00Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="issued">2024-12</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="issn">0093-7754</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/10259/10135</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="doi">10.1053/j.seminoncol.2024.10.003</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="en">Retrorectal cystic hamartoma (also known as tailgut cyst) is a congenital lesion that originates from debris from the embryonic caudal intestine. Incidentally diagnosed in more than half of cases, the treatment of choice is surgical resection. It is a very rare pathology whose oncological transformation constitutes a true pathological rarity.</dim:field>
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<dim:field mdschema="dc" element="language" qualifier="iso" lang="es">eng</dim:field>
<dim:field mdschema="dc" element="publisher" lang="es">Elsevier</dim:field>
<dim:field mdschema="dc" element="relation" qualifier="ispartof" lang="es">Seminars in Oncology. 2024, V. 51, n. 5-6, p- 154-155</dim:field>
<dim:field mdschema="dc" element="relation" qualifier="publisherversion" lang="es">https://doi.org/10.1053/j.seminoncol.2024.10.003</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Hamartoma</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Retrorrectal</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Adenocarcinoma</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="es">Medicina</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="es">Cirugía</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="es">Aparato digestivo-Enfermedades</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="en">Medicine</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="en">Surgery</dim:field>
<dim:field mdschema="dc" element="subject" qualifier="other" lang="en">Digestive organs-Diseases</dim:field>
<dim:field mdschema="dc" element="title" lang="en">Adenocarcinoma on retrorectal cystic hamartoma: An illustrative image for a very rare diagnosis</dim:field>
<dim:field mdschema="dc" element="type" lang="es">info:eu-repo/semantics/article</dim:field>
<dim:field mdschema="dc" element="type" qualifier="hasVersion" lang="es">info:eu-repo/semantics/publishedVersion</dim:field>
<dim:field mdschema="dc" element="rights" qualifier="accessRights" lang="es">info:eu-repo/semantics/closedAccess</dim:field>
<dim:field mdschema="dc" element="journal" qualifier="title" lang="es">Seminars in Oncology</dim:field>
<dim:field mdschema="dc" element="volume" qualifier="number" lang="es">51</dim:field>
<dim:field mdschema="dc" element="issue" qualifier="number" lang="es">5-6</dim:field>
<dim:field mdschema="dc" element="page" qualifier="initial" lang="es">154</dim:field>
<dim:field mdschema="dc" element="page" qualifier="final" lang="es">155</dim:field>
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