case_images: PMC8025948_01
case_images: Preoperative extraoral
case_images: IJABMR-11-47-g001.jpg
case_images: PMC8025948_01_IJABMR-11-47-g001.jpg
case_images: F1
case_images: The left ear lobule was slightly raised and everted [Figure 1].
case_images: Preopertaive intraoral
case_images: IJABMR-11-47-g002.jpg
case_images: PMC8025948_01_IJABMR-11-47-g002.jpg
case_images: F2
case_images: Incisional biopsy was performed for intraoral lesion, which was suggestive of well-differentiated squamous cell carcinoma (SCC) [Figure 2].
case_images: Intraoperative facial nerve
case_images: IJABMR-11-47-g003.jpg
case_images: PMC8025948_01_IJABMR-11-47-g003.jpg
case_images: F3
case_images: The marginal mandibular nerve was identified from beneath the lower incision margin and retrograde tracing was performed to locate the main nerve truck, which was preserved [Figure 3].
case_images: Postoperative intact facial nerve function
case_images: IJABMR-11-47-g004.jpg
case_images: PMC8025948_01_IJABMR-11-47-g004.jpg
case_images: F4
case_images: Postoperative period was uneventful [Figure 4].