Tissue retractor system–assisted endoscopic submucosal dissection of a large rectal tumor with significant fibrosis from direct tattooing Salmaan Jawaid,

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Presentation transcript:

Tissue retractor system–assisted endoscopic submucosal dissection of a large rectal tumor with significant fibrosis from direct tattooing Salmaan Jawaid, MD, Dennis Yang, MD, Peter V. Draganov, MD VideoGIE Volume 4, Issue 2, Pages 84-86 (February 2019) DOI: 10.1016/j.vgie.2018.10.008 Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 1 The tissue retractor system consists of a retractable cage attached to an overtube that allows for insertion and removal of the endoscope without losing position within the colon. There are 2 manipulation channels that run through the overtube and can allow insertion of graspers. When retracted, the cage provides stabilization within the colon, and graspers allow for the maximal tensile force needed to visualize the dissection plane. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 2 Bulky 7-cm laterally spreading rectal tumor with slightly irregular vessel pattern and nodularity with evidence of previous tattoo into and around the lesion. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 3 Lesion seen in the retroflexed view. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 4 Circumferential marking before incision is begun. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 5 Use of the grasping device through the tissue retractor system allows for tissue manipulation and adequate traction. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 6 Significant tattoo material with corresponding fibrosis, limiting visibility of dissection field. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 7 Triangulation of tissue retraction device with associated tissue grasper to allow for maximal tension and safe dissection through fibrotic tissue. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 8 Endoscopic image after complete endoscopic submucosal dissection. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 9 Final en bloc resection specimen; histopathologic analysis revealed tubulovillous adenoma with high-grade dysplasia and negative deep and lateral margins. VideoGIE 2019 4, 84-86DOI: (10.1016/j.vgie.2018.10.008) Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions