Table 1.

Case Series of Intraoperative Ultrasound Use During Transoral Robotic Surgery.

Patient	Age/Sex	Pathology	Procedure	Ultrasound Function
1	78 F	SCC of oropharynx, T2	Partial pharyngectomy	Vessel identification
2	66 M	SCC of base of tongue, T2	Base of tongue resection	Tumor margin assessment (US measurement, 1.36 cm; gross measurement, 1.3 cm)
3	60 M	SCC of tonsil, T2	Partial pharyngectomy	Vessel identification
4	83 M	Parapharyngeal space Warthin’s tumor	Transoral resection of parapharyngeal space tumor	Vessel identification
5	71 M	Unknown primary SCC	Tongue base resection	Search for unknown primary unsuccessful (primary tumor later identified histologically in resection specimen)
6	70 F	SCC of tonsil, T2	Partial pharyngectomy	Vessel identification
7	51 M	Liposarcoma of pharyngeal wall	Partial pharyngectomy	Vessel identification, tumor depth assessment (US measurement, 0.68 cm; gross measurement, 0.75 cm)
8	57 M	SCC of tonsil, T3	Attempted radical tonsillectomy	Vessel identification—large caliber vessel seen running immediately adjacent to tumor edge, aborted procedure
9	73 F	SCC of tongue base, T1	Tongue base resection	Tumor depth assessment (US measurement, 0.66 cm; gross measurement, 0.6 cm)
10	49	SCC of tonsil, T2	Radical tonsillectomy	Tumor depth assessment (US measurement, 0.79 cm; gross measurement, 0.9 cm)

Abbreviations: SCC, squamous cell carcinoma; US, ultrasound.