Endoscopic Submucosal Dissection of Secondary Hypopharyngeal Neoplasia in Trismus Oral Cancer Patients: Case Series ReportChen-Shuan Chung1,2, Wu-Chia Lo3, Kuan-Chih Chen1 and Li-Jen Liao3*
- *Corresponding Author:
- Li-Jen Liao
Department of Otolaryngology, Far Eastern Memorial Hospital
No. 21, Nan-Ya South Road, Section 2, Banciao District
New Taipei City, Taiwan, 22060
E-mail: [email protected]
Received date: May 18, 2017; Accepted date: May 26, 2017; Published date: June 02, 2017
Citation: Chung CS, Lo WC, Chen KC, Liao LJ (2017) Endoscopic Submucosal Dissection of Secondary Hypopharyngeal Neoplasia in Trismus Oral Cancer Patients: Case Series Report. J Gastrointest Dig Syst 7:507. doi:10.4172/2161-069X.1000507
Copyright: © 2017 Chung CS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The incidence of second primary tumor (SPT) in head and neck (H&N) cancer patients is not uncommon [1,2]. When using image-enhanced endoscopy (IEE) screening in patients at risk, especially narrow-band imaging (NBI) endoscopy and chromoendoscopy with Lugol's solution, approximately 20% of H&N cancer patients have synchronous neoplasia in H&N regions of esophagus [1,2]. Unfortunately, some of them have trismus because of oral submucosa fibrosis secondary to long-term betel quit chewing or post-irradiation therapy, and tumor-related airway compromised. These situations make the pharyngeal passages difficult to reach with conventional endoscopes. Traditionally, hypopharyngeal neoplasia in trismus patients are managed with widest field of resection, open partial pharyngectomy and usually in conjunction with partial or total laryngectomy, which are accompanied with poor quality of life (QoL). We present three trismus patients with early hypopharyngeal neoplasia treated by transoral endoscopic submucosal dissection (ESD).