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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Adenoid cystic carcinoma is a malignancy primarily originating from the minor salivary and submandibular glands&#44; with rare instances of development in secretory glands of other tissues&#44; such as the trachea&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a> Primary Tracheal Adenoid Cystic Carcinoma &#40;TACC&#41; represents approximately 1&#46;2&#37; of upper respiratory tract neoplasms&#46;<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">2</span></a> We subsequently present a case of inoperable primary TACC&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">A 60-year-old female&#44; with no active smoking history or familial cancer history&#44; presented with a two-year history of dyspnea and concurrent osteoarthritis&#46; In March 2015&#44; bronchoscopy revealed a pedunculated tumor in the inferior third of the trachea&#44; occluding roughly 90&#37; of the airway&#46; The pathologic diagnosis confirmed TACC&#46; Due to carina invasion &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>A&#44; B&#41; and elevated surgical risk&#44; bronchoscopic tumor reduction was pursued&#44; followed by postoperative radiotherapy following a 70Gy&#47;35f&#47;2Gy regimen&#46; In September 2019&#44; a chest CT scan revealed multiple nodules in the right lung&#44; suggestive of metastasis&#46; The patient underwent a year of combined treatment with apatinib and vinorelbine&#46; In August 2020&#44; a new nodule emerged in the left lung&#44; while the right lung nodule increased in size&#46; Percutaneous lung puncture pathology confirmed TACC &#40;right&#41;&#46; The patient underwent argon-helium cryoablation therapy &#40;right&#41; &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>C&#44; D&#41; in October&#46; In July 2021&#44; the bilateral lung nodules grew&#44; and the patient could not undergo further ablation treatment&#46; Since September 2021&#44; the patient underwent multiple tracheal tumor resections and local injections &#40;endostar<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>cisplatin&#41; due to the recurrence of endotracheal lesions&#46; In December 2022&#44; the patient experienced dysphagia&#44; with upper gastrointestinal angiography revealing stenosis&#46; An esophageal stent was subsequently inserted under digital subtraction angiography &#40;DSA&#41; guidance &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>E&#44; F&#41;&#44; however&#44; the patient developed mild dyspnea due to tracheal compression&#46; In June 2023&#44; the patient presented with recurrent difficulty in breathing and swallowing&#46; A chest CT scan revealed near-total occlusion of the upper gastrointestinal tract lumen and new tracheal neoplasms &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>G&#44; H&#41;&#46; The patient underwent bronchoscopy&#44; and the neoplasms in the esophagus and trachea were excised&#46; Pathology revealed granuloma &#40;esophagus&#41;&#44; and the esophageal stent was repositioned to cover the neoplasia &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>I&#8211;K&#41;&#46; Later&#44; tracheoscopy revealed an airway stenosis of approximately 80&#37;&#44; and a Y-shaped metal-covered stent was inserted &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>L&#41;&#44; with efficacy evaluated by chest CT scan &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>M&#41;&#46; A month later&#44; a digestive-respiratory tract fistula developed &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>N&#41;&#44; and the patient is currently undergoing anti-infective treatment&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">In comparison to fully resected TACC&#44; patients with inoperable TACC exhibit reduced survival rates &#40;10-year survival rate 63&#46;4&#37; vs&#46; 46&#46;4&#37;&#41;&#44; with the optimal treatment strategy remaining elusive&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">3</span></a> Radiotherapy can mitigate the risk of local TACC recurrence&#44; although it shows limited sensitivity to chemotherapy&#46; Vascular-targeting drugs can decelerate its growth rate&#44; but the lack of clinical studies hampers accurate efficacy evaluation&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">4</span></a> We consider our case to be of significant relevance&#46; Firstly&#44; choosing treatment for inoperable TACC is an immense challenge&#46; We documented the comprehensive treatment journey of a TACC patient with prolonged survival&#44; consistently adhering to the principles of palliative care&#46; Secondly&#44; this case serves as a reminder that for advanced TACC patients requiring dual tracheal and esophageal stents&#44; vigilance toward the development of tracheo-esophageal fistula is crucial&#46;<a class="elsevierStyleCrossRef" href="#bib0011"><span class="elsevierStyleSup">5</span></a></p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Authors&#8217; contributions</span><p id="par0020" class="elsevierStylePara elsevierViewall">Jun Teng&#58; Conceived and design of the study&#44; drafting the article&#44; and approval of the final version&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Heng Zou&#58; Acquisition of data&#44; critical revision and approved the manuscript&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">Hongwu Wang&#58; Design of the study&#44; agreement to be accountable for all aspects of the manuscript in ensuring that questions related to the accuracy or integrity of any part of the manuscript are appropriately investigated and resolved&#44; read and approved&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Institutional review board statement</span><p id="par0035" class="elsevierStylePara elsevierViewall">The Ethics Committee of Dongzhimen Hospital Affiliated with the Beijing University of Chinese Medicine &#40;Project ID&#58; 2023DZMEC-450-01&#41;&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Informed consent statement</span><p id="par0040" class="elsevierStylePara elsevierViewall">Participant was fully informed of the study and gave their informed written consent before participation&#46; This study was conducted in accordance with the Declaration of Helsinki&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Data availability statement</span><p id="par0045" class="elsevierStylePara elsevierViewall">The data that support the findings of this study are available from the corresponding author upon reasonable request&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Consent for publication</span><p id="par0050" class="elsevierStylePara elsevierViewall">All authors agree to the publication of this article&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Funding</span><p id="par0055" class="elsevierStylePara elsevierViewall">This research was funded by the <span class="elsevierStyleGrantSponsor" id="gs1">innovative development project for young physicians of the professional committee of respiratory disease drug research of china association of traditional Chinese medicine</span> &#40;No&#46; <span class="elsevierStyleGrantNumber" refid="gs1">HXQNJJ-2023-014</span>&#41;&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Conflicts of interest</span><p id="par0060" class="elsevierStylePara elsevierViewall">The authors declare no conflict of interest&#46;</p></span></span>"
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Case Report
Primary Tracheal Adenoid Cystic Carcinoma: Therapeutic Challenges Posed by Unresectable
Jun Tenga,b, Heng Zoua, Hongwu Wanga,
Corresponding author
wanghongwu2015@126.com

Corresponding author.
a Respiratory Disease Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
b Beijing University of Traditional Chinese Medicine, Beijing, China
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Adenoid cystic carcinoma is a malignancy primarily originating from the minor salivary and submandibular glands&#44; with rare instances of development in secretory glands of other tissues&#44; such as the trachea&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a> Primary Tracheal Adenoid Cystic Carcinoma &#40;TACC&#41; represents approximately 1&#46;2&#37; of upper respiratory tract neoplasms&#46;<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">2</span></a> We subsequently present a case of inoperable primary TACC&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">A 60-year-old female&#44; with no active smoking history or familial cancer history&#44; presented with a two-year history of dyspnea and concurrent osteoarthritis&#46; In March 2015&#44; bronchoscopy revealed a pedunculated tumor in the inferior third of the trachea&#44; occluding roughly 90&#37; of the airway&#46; The pathologic diagnosis confirmed TACC&#46; Due to carina invasion &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>A&#44; B&#41; and elevated surgical risk&#44; bronchoscopic tumor reduction was pursued&#44; followed by postoperative radiotherapy following a 70Gy&#47;35f&#47;2Gy regimen&#46; In September 2019&#44; a chest CT scan revealed multiple nodules in the right lung&#44; suggestive of metastasis&#46; The patient underwent a year of combined treatment with apatinib and vinorelbine&#46; In August 2020&#44; a new nodule emerged in the left lung&#44; while the right lung nodule increased in size&#46; Percutaneous lung puncture pathology confirmed TACC &#40;right&#41;&#46; The patient underwent argon-helium cryoablation therapy &#40;right&#41; &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>C&#44; D&#41; in October&#46; In July 2021&#44; the bilateral lung nodules grew&#44; and the patient could not undergo further ablation treatment&#46; Since September 2021&#44; the patient underwent multiple tracheal tumor resections and local injections &#40;endostar<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>cisplatin&#41; due to the recurrence of endotracheal lesions&#46; In December 2022&#44; the patient experienced dysphagia&#44; with upper gastrointestinal angiography revealing stenosis&#46; An esophageal stent was subsequently inserted under digital subtraction angiography &#40;DSA&#41; guidance &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>E&#44; F&#41;&#44; however&#44; the patient developed mild dyspnea due to tracheal compression&#46; In June 2023&#44; the patient presented with recurrent difficulty in breathing and swallowing&#46; A chest CT scan revealed near-total occlusion of the upper gastrointestinal tract lumen and new tracheal neoplasms &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>G&#44; H&#41;&#46; The patient underwent bronchoscopy&#44; and the neoplasms in the esophagus and trachea were excised&#46; Pathology revealed granuloma &#40;esophagus&#41;&#44; and the esophageal stent was repositioned to cover the neoplasia &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>I&#8211;K&#41;&#46; Later&#44; tracheoscopy revealed an airway stenosis of approximately 80&#37;&#44; and a Y-shaped metal-covered stent was inserted &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>L&#41;&#44; with efficacy evaluated by chest CT scan &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>M&#41;&#46; A month later&#44; a digestive-respiratory tract fistula developed &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>N&#41;&#44; and the patient is currently undergoing anti-infective treatment&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">In comparison to fully resected TACC&#44; patients with inoperable TACC exhibit reduced survival rates &#40;10-year survival rate 63&#46;4&#37; vs&#46; 46&#46;4&#37;&#41;&#44; with the optimal treatment strategy remaining elusive&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">3</span></a> Radiotherapy can mitigate the risk of local TACC recurrence&#44; although it shows limited sensitivity to chemotherapy&#46; Vascular-targeting drugs can decelerate its growth rate&#44; but the lack of clinical studies hampers accurate efficacy evaluation&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">4</span></a> We consider our case to be of significant relevance&#46; Firstly&#44; choosing treatment for inoperable TACC is an immense challenge&#46; We documented the comprehensive treatment journey of a TACC patient with prolonged survival&#44; consistently adhering to the principles of palliative care&#46; Secondly&#44; this case serves as a reminder that for advanced TACC patients requiring dual tracheal and esophageal stents&#44; vigilance toward the development of tracheo-esophageal fistula is crucial&#46;<a class="elsevierStyleCrossRef" href="#bib0011"><span class="elsevierStyleSup">5</span></a></p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Authors&#8217; contributions</span><p id="par0020" class="elsevierStylePara elsevierViewall">Jun Teng&#58; Conceived and design of the study&#44; drafting the article&#44; and approval of the final version&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Heng Zou&#58; Acquisition of data&#44; critical revision and approved the manuscript&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">Hongwu Wang&#58; Design of the study&#44; agreement to be accountable for all aspects of the manuscript in ensuring that questions related to the accuracy or integrity of any part of the manuscript are appropriately investigated and resolved&#44; read and approved&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Institutional review board statement</span><p id="par0035" class="elsevierStylePara elsevierViewall">The Ethics Committee of Dongzhimen Hospital Affiliated with the Beijing University of Chinese Medicine &#40;Project ID&#58; 2023DZMEC-450-01&#41;&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Informed consent statement</span><p id="par0040" class="elsevierStylePara elsevierViewall">Participant was fully informed of the study and gave their informed written consent before participation&#46; This study was conducted in accordance with the Declaration of Helsinki&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Data availability statement</span><p id="par0045" class="elsevierStylePara elsevierViewall">The data that support the findings of this study are available from the corresponding author upon reasonable request&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Consent for publication</span><p id="par0050" class="elsevierStylePara elsevierViewall">All authors agree to the publication of this article&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Funding</span><p id="par0055" class="elsevierStylePara elsevierViewall">This research was funded by the <span class="elsevierStyleGrantSponsor" id="gs1">innovative development project for young physicians of the professional committee of respiratory disease drug research of china association of traditional Chinese medicine</span> &#40;No&#46; <span class="elsevierStyleGrantNumber" refid="gs1">HXQNJJ-2023-014</span>&#41;&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Conflicts of interest</span><p id="par0060" class="elsevierStylePara elsevierViewall">The authors declare no conflict of interest&#46;</p></span></span>"
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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">&#40;A and B&#41; A huge pedunculated round mass in the inferior third of the trachea &#40;20&#47;3&#47;2015&#41;&#46; &#40;C and D&#41; Right lung tumor before and after receiving argon-helium cryoablation targeted therapy &#40;30&#47;10&#47;2020&#59; 4&#47;11&#47;2020&#41;&#46; &#40;E and F&#41; Esophageal stenosis&#44; and then esophageal covered metal mesh stent &#40;MTN-SE-S-20&#47;100-A-8&#47;650&#41; implantation under DSA &#40;5&#47;1&#47;2021&#59; 6&#47;1&#47;2021&#41;&#46; &#40;G and H&#41; Tracheal space occupying&#44; esophageal space occupying after esophageal covered metal mesh stent implantation &#40;7&#47;6&#47;2023&#41;&#46; &#40;I and J&#41; Rigid bronchoscopy combined with flexible bronchoscopy to remove the new organisms in the esophagus and then move the esophageal covered metal mesh stent up 1<span class="elsevierStyleHsp" style=""></span>cm&#40;7&#47;6&#47;2023&#41;&#46; &#40;K and L&#41; Rigid bronchoscopy combined with flexible bronchoscopy to remove tracheal new organisms and then Y-shaped covered metal mesh stent &#40;size&#58; 16<span class="elsevierStyleHsp" style=""></span>mm<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>50<span class="elsevierStyleHsp" style=""></span>mm trachea&#47;12<span class="elsevierStyleHsp" style=""></span>mm<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>35<span class="elsevierStyleHsp" style=""></span>mm left principal bronchus&#47;15<span class="elsevierStyleHsp" style=""></span>mm<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>35<span class="elsevierStyleHsp" style=""></span>mm right principal bronchus&#41; was implanted &#40;7&#47;6&#47;2023&#59; 9&#47;6&#47;2023&#41;&#46; &#40;M&#41; Chest CT was used to evaluate the placement of double stents &#40;10&#47;6&#47;2023&#41;&#46; &#40;N&#41; Digestive-respiratory tract fistulas &#40;8&#47;7&#47;2023&#41;&#46;</p>"
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        "texto" => "<p id="par0065" class="elsevierStylePara elsevierViewall">We also thank OpenAI for granting us access to their language model&#44; ChatGPT&#44; which assisted us in improving the language quality of this paper&#46;</p>"
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ISSN: 03002896
Original language: English
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