Clinicopathological features of multiple mucosal neuroma without multiple endocrine neoplasia type IIB / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To investigate the clinicopathological features of multiple mucosal neuromas without multiple endocrine neoplasia type IIB (non-MEN-IIB MMN).</p><p><b>METHODS</b>Three cases of non-MEN-IIB MMNs were analyzed for the clinical manifestations and histopathological characteristics.</p><p><b>RESULTS</b>All the 3 cases were females, age ranging from 30 to 45 years. Two cases of them involved in the laryngopharyngeal mucosa and another one located in the left margin of the tongue. Clinically, non-MEN-IIB MMNs presented with uncertain foreign body sensation, itching, vomiting and causalgia in the laryngopharyngeal areas. Mucosal papular lesions were treated by laser ablation or local surgical excision. The cases were respectively followed up for 6 to 20 months and found nothing. Histological examination showed the lesions were not encapsulated and contained irregular tortuous nerve bundles with undefined perineurium in the lamina propria. There were no nuclear palisade. Immunophenotype showed tumor cells strongly positive for vimentin, S-100, myelin specific enolase, CD56, neurofilament and neuron specific enolase, uniformly negative to CD34, CD117 and epithelial membrane antigen.</p><p><b>CONCLUSIONS</b>Non-MEN-IIB MMN is a very rare disease and the possibility of MEN-IIB should be excluded before making diagnosis. The lesions located in the mucosal tissue with polyp-like or papular appearance, so they should be differentiated from other neoplasms or non-neoplastic lesions.</p>

Retrospective analysis of 2461 patients with maxillofacial fractures / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To review the 2461 cases of maxillofacial fractures.</p><p><b>METHODS</b>From 2003 to 2009, 2461 maxillofacial fracture cases were treated in Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Traditional Chinese Medicine. Data regarding sex, age, cause of injury, occupation, geographic distribution, blood type, fracture site, multiple associated injuries, injury severity, the patient's first admitted department, treatment results were reviewed.</p><p><b>RESULTS</b>The male and female ratio was 4.28:1, 1424(57.86 %) patients were between 20 and 40 years of age. The most common cause of injury was road traffic accident (938 cases, 40.98%). People in tertiary industry (900 cases, 78.53%) were most vulnerable to injuries. The zygomatic complex (22.08%), nasal bone (20.67%) and mandible (16.35%) were the most frequent fracture sites, which were often associated with skull (21.74%), brain (38.36%) and soft tissue contusion injury (48.84%). 85.98% (2116/2461 cases), of patients' AIS score was less than 2. Orthopaedics (939/2461 cases, 38.16%) was the first admitted department.</p><p><b>CONCLUSIONS</b>The traffic accidents are the main cause of the maxillofacial fractures. Most injuries are found in the young and middle-aged people.</p>

Transmasseter approach to mid-and-low condylar fractures by mini-retromandibular access / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To explore a new access for internal rigid fixation of mandibular mid-and-low condylar fracture.</p><p><b>METHODS</b>16 patients of unilateral mid-and-low condylar fractures were treated with a 2cm mini-retromandibular approach. The subcutaneous tissues superficial to the superficial muscular aponeurotic system (SMAS) were dissected forward that parallel to the masseter muscle fiber bundles, aiming to the fracture. After exposing the fracture, the fracture segments were reduced and fixed under sufficient exposure.</p><p><b>RESULTS</b>Correct anatomic reduction and occlusion were achieved in all cases. Additionally, all patients showed normal articular function and the surgical scars were barely visible.</p><p><b>CONCLUSION</b>The transmasseter approach by retromandibular access is one of the feasible methods for curing mid-and-low condylar fracture, which minimizeing the risk of facial nerve injury and reducing the visible scars.</p>

Extended lower trapezius myocutaneous flap for repair of defects after resection of recurrent oral carcinoma / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To explore an effective repairing method for oral and maxillofacial soft-tissue defects after resection of recurrent oral carcinoma.</p><p><b>METHODS</b>Six patients with recurrent oral squamous cell carcinoma (R-OSCC) of tongue (n = 2), oral cavity floor (n = 2) and buccal (n = 2) were treated with salvage surgery and the oral and maxillofacial soft-tissue defects were repaired primarily by extended lower trapezius island myocutaneous flap (TIMF).</p><p><b>RESULTS</b>No flap failure occurred. The donor sites were primarily closed. There were no disabilities with regard to shoulder motion. The life period of the patients was 13 to 30 months and the average life period was 22.6 months after the operation.</p><p><b>CONCLUSIONS</b>The TIMF, which is a simple, reliable and large flap can be preferred as a salvage procedure for oral and maxillofacial soft-tissue defects after treatment of R-OSCC.</p>