The specimen is inked in various colors for each margin, with orange representing "not true margin."
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Weinstein GS, Quon H, Newman HJ, et al. Transoral Robotic Surgery Alone for Oropharyngeal Cancer: An Analysis of Local Control. Arch Otolaryngol Head Neck Surg. 2012;138(7):628–634. doi:10.1001/archoto.2012.1166
Author Affiliations: Departments of Otorhinolaryngology–Head and Neck Surgery (Drs Weinstein, Newman, Chalian, and O’Malley), Radiation Oncology (Dr Lin), Hematology-Oncology (Drs Desai and Cohen), and Pathology and Laboratory Medicine (Drs Livolsi and Montone), University of Pennsylvania Medical Center, Philadelphia; Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (Dr Quon).
Objective To evaluate local control following transoral robotic surgery (TORS) with the da Vinci Surgical System (Intuitive Surgical Inc) as a single treatment modality for oropharyngeal squamous cell carcinoma (OSCC).
Design Prospective, single-center, observational study.
Setting Academic university health system and tertiary referral center.
Patients Thirty adults with previously untreated OSCC.
Intervention Transoral robotic surgery with staged neck dissection as indicated.
Main Outcome Measures Local control and margin status.
Results Thirty patients were enrolled with previously untreated OSCC and no prior head and neck radiation therapy. Follow-up duration was at least 18 months. At the time of diagnosis, 9 tumors were T1 (30%); 16 were T2 (53%); 4 were T3 (13%); and 1 was T4a (3%). The anatomic sites of these primary tumors were tonsil in 14 (47%), tongue base in 9 (30%), glossotonsillar sulcus in 3 (10%), soft palate in 3 (10%), and oropharyngeal wall in 1 (3%). There was only 1 patient (3%) who had a positive margin after primary resection; further resection achieved a final negative margin. Perineural invasion was noted in 3 tumors (10%). No patient received postoperative adjuvant therapy. At a mean follow-up of 2.7 years (range, 1.5-5.1 years), there was 1 patient with local failure (3%).
Conclusion As the only modality used for treatment of pathologically low-risk OSCCs, TORS provides high local control and is associated with low surgical morbidity.
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