Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Dec 13;6(2):67-70.
doi: 10.1016/j.vgie.2020.10.004. eCollection 2021 Feb.

Endoscopic submucosal dissection for superficial pharyngeal carcinoma using transnasal endoscope

Daisuke Kikuchi  1 , Masami Tanaka  1 , Yugo Suzuki  1 , Hidehiko Takeda  2 , Shu Hoteya  1
Affiliations

Endoscopic submucosal dissection for superficial pharyngeal carcinoma using transnasal endoscope

Daisuke Kikuchi et al. VideoGIE. .
No abstract available

Keywords: ESD, endoscopic submucosal dissection.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Schema of the pharynx. The posterior wall of the oropharynx is seen vertically via the transoral endoscope (red arrow). With the transnasal endoscope, the lesion can be approached horizontally (blue arrow).
Figure 2
Figure 2
Endoscopic image of marking. A 25-mm area unstained with iodine is seen on the right side of the posterior oropharyngeal wall.
Figure 3
Figure 3
Endoscopic image during mucosal incision (transoral endoscope). Circumferential incision performed via conventional endoscopy.
Figure 4
Figure 4
Endoscopic image during dissection (transoral endoscope). Entry into the subepithelial layer circumferential incision is difficult because the subepithelial tissue is thin and perpendicular to the muscle layer.
Figure 5
Figure 5
Endoscopic image during dissection (transnasal endoscope). Horizontal approach to the lesion is possible. Entry into the narrow subepithelial space is easy because of the thin endoscope.
Figure 6
Figure 6
Endoscopic image during dissection (transnasal endoscope). Subepithelial tissue could be dissected under direct vision. Laryngeal forceps inserted orally are useful for applying traction.
Figure 7
Figure 7
Endoscopic submucosal dissection ulcer after resection. The lesion was resected en bloc without adverse events.
Figure 8
Figure 8
Endoscopic submucosal dissection specimen. The lesion was squamous cell carcinoma in situ, measuring 25×14 mm, ly0, v0, margin negative.
Figure 9
Figure 9
Two months after endoscopic submucosal dissection. Endoscopic submucosal dissection ulcer was completely healed.
See this image and copyright information in PMC

References

    1. Muto M., Minashi K., Yano T. Early detection of superficial squamous cell carcinoma in the head and neck region and esophagus by narrow band imaging: a multicenter randomized controlled trial. J Clin Oncol. 2010;28:1566–1572. - PMC - PubMed
    1. Kikuchi D., Iizuka T., Yamada A. Utility of magnifying endoscopy with narrow band imaging in determining the invasion depth of superficial pharyngeal cancer. Head Neck. 2015;37:846–850. - PubMed
    1. Hanaoka N., Ishihara R., Takeuchi Y. Endoscopic submucosal dissection as minimally invasive treatment for superficial pharyngeal cancer: a phase II study (with video) Gastrointest Endosc. 2015;82:1002–1008. - PubMed
    1. Iizuka T., Kikuchi D., Hoteya S. Endoscopic submucosal dissection for treatment of mesopharyngeal and hypopharyngeal carcinomas. Endoscopy. 2009;41:113–117. - PubMed
    1. Iizuka T., Kikuchi D., Hoteya S. A new technique for pharyngeal endoscopic submucosal dissection: peroral countertraction (with video) Gastrointest Endosc. 2012;76:1034–1038. - PubMed

LinkOut - more resources