Outcomes of patients with mucoepidermoid carcinoma of minor salivary gland in palate undergoing radical resection followed by submental flap reconstruction

Objective: To investigate the outcomes of patients with mucoepidermoid carcinoma of the palate undergoing pedicled facial-submental artery island flap (FSIF) reconstruction following resection. Patients and methods: 41 patients with early stage disease and 9 patients with advanced-stage disease underwent radical excision and neck dissection. 37 IIb, 4 class IIa and 9 IIIb maxillary defects were reconstructed with FSIF, folded FSIF or folded FSIF with titanium mesh respectively. The skin paddles were 3 x 8 to 5 x 15 cm and 3 x 8 to 5 x 14 cm, respectively. 5 patients with high grade disease were treated with cobalt 60 adjuvant radiotherapy after operation. Results: One flap failure occurred, yielding a success rate of 98.0% in the reconstruction of palate II and III defects with FSIF or titanium mesh. The patients were seen for follow-up for 16-60 months postoperative. 76.0% patients alive with no disease (AND); 14.0% patients alive with disease (AD) and 10.0% died of disease (DD). Rates of AND, AD and DD differed significantly according to histopathologic grade and TNM stage (P < 0.001); rates of AND, AD and DD differed obviously according to necrosis of the tumors lymph node metastasis, and tumour cell anaplasia and treatment (P < 0.05). Conclusions: Radical resection with wide safety margins of normal tissues including neck dissection is the mainstay of treatment modality. The patients with high grade disease should be treated with postoperative radiotherapy. The FSIF is a reliable and safe method for repairing Brown class II maxillary defects. (c) 2021 Asian Surgical Association and Taiwan Robotic Surgery Association. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

Automated summary

This study investigated the outcomes of patients with mucoepidermoid carcinoma of the palate undergoing pedicled facial-submental artery island flap (FSIF) reconstruction following resection. The results showed that the survival rates of patients with mucoepidermoid carcinoma were closely related to tumor grade and TNM stage.