PMC4627106_01
(a) Preoperative magnetic resonance T2 images of patient 1. (b, c) Illustrations showing patient 1 just after tumor resection. (b) The mandible osteotomy approach was selected. The resection resulted in a large oropharyngeal defect, and the internal carotid artery was exposed (black arrow). (c) Illustration showing the grossly resected tumor.
icrp-1-013-g001.jpg
PMC4627106_01_icrp-1-013-g001.jpg
F0001
Magnetic resonance imaging (MRI) revealed a tumor occupying the PPS with a size of 43 x 38 x 35 mm, which had the characteristics of a trigeminal nerve sheath tumor (Figure 1), and the nearby hospital referred the patient to our hospital.
Illustrations showing the reconstruction of patient 1: (a) the rectus abdominis musculocutaneous flap. (b) The flap was transferred into the oroparapharyngeal space. The lingual artery and external jugular vein were used as the recipient vessels. (c, d) Illustrations showing the oropharynx immediately after surgery (c) and 3 weeks after surgery (d).
icrp-1-013-g002.jpg
PMC4627106_01_icrp-1-013-g002.jpg
F0002
The patient underwent resection of the PPS tumor along with part of the middle constrictor muscle, internal pterygoid muscle, and palatine tonsil because of tumor invasion (Figure 2), using a median mandibular osteotomy approach.
(a) Preoperative magnetic resonance T2 images of patient 2. (b, c) Illustrations showing patient 2 just after tumor resection. (b) Resection was achieved by using the cervical approach. The internal carotid artery was exposed (black arrow). (c) The oropharyngeal defect resulting from the resection is shown.
icrp-1-013-g003.jpg
PMC4627106_01_icrp-1-013-g003.jpg
F0003
A free rectus abdominis musculocutaneous flap, with a size of 35 x 50 mm after trimming, was transferred to cover the internal carotid artery and to compensate for the oropharyngeal defect (Figure 3).
PMC4627106_02
Illustrations showing the reconstruction on patient 2: (a) the anterolateral thigh vastus lateralis musculocutaneous flap. (b) The flap was transferred into the oroparapharyngeal space. The suprathyroid artery and common facial vein were used as the recipient vessels. (c, d) Illustrations showing the oropharynx immediately after surgery (c) and 4 months after surgery (d).
icrp-1-013-g004.jpg
PMC4627106_02_icrp-1-013-g004.jpg
F0004
A free anterolateral thigh vastus lateralis musculocutaneous flap with a size of 50 x 50 mm after trimming was transferred to cover the internal carotid artery and to compensate for the oropharyngeal defect (Figure 4).