• Shih-Lung Chen, Shy-Chyi Chin, Chi-Kuang Young, Huei-Tzu Chien, Chun-Ta Liao, Chung-Kang Tsao, Chung-Jan Kang, and Shiang-Fu Huang.
• Department of Otolaryngology & Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan.
• Oral Oncol. 2019 Sep 1; 96: 15-20.

ObjectivesThe marsupialization of Stensen's duct after buccal cancer excision and free flap reconstruction has seldom been reported. In this study, we evaluated the alteration in Stensen's duct and parotid gland, without marsupialization or relocation, between the time of surgery and 24 months postoperatively to determine whether ductal management is needed in patients with buccal squamous cell carcinoma (BSCC).MethodsEighty-five patients with BSCC receiving primary radical surgery and free flap reconstruction were recruited. Alterations in Stensen's duct and parotid gland were assessed by computed tomography during the postoperative period.ResultsThe 81 males and 4 females enrolled in study had a tumor status of cT2 (n = 52, 61%) or cT3 (n = 33, 39%). In total, 52 (61%) patients received surgery alone, and 33 (39%) received adjuvant concurrent chemoradiotherapy (CCRT) postoperatively. Stensen's duct on the affected side was significantly dilated compared to the non-affected side (p < 0.001). The difference in diameter of Stensen's duct between the surgery plus CCRT group and the surgery alone group was not significant (p > 0.05), indicating that changes in parotid gland occurred mainly due to surgery. In both the surgery and surgery plus CCRT groups, inflammation of parotid gland had regressed by 24 months.ConclusionsStensen's duct in BSCC dilatation peaked in the 3rd month after surgery. Changes in parotid gland on the surgically treated side regressed into fatty change by 24 months after surgery.Copyright © 2019 Elsevier Ltd. All rights reserved.

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