Visualisation of the vomerovaginal canal during endonasal transpterygoid approaches and CT imaging diagnosis.

The vomerovaginal canal (VVC) and palatovaginal canal (PVC) are two canals that open forward to the posterior wall of the pterygopalatine fossa (PPF). Although the anatomy and computed tomography (CT) appearances of the PVC have been well studied, the VVC has been rarely reported, especially in endoscopic examinations. Some studies have even failed to distinguish the PVC from the VVC on CT images.

Combined transoral and endoscopic approach for cervical spine tumor resection.

This study aimed to explore the feasibility and clinical effectiveness of a combined transoral and endoscopic approach for the removal of benign cervical spine tumors.First, we obtained detailed anatomical measurements of the atlantoaxial joint from 20 fresh cadaveric specimens and performed simulated surgeries with the combined transoral and endoscopic approach on 10 cadaveric specimens. Then, we applied the combined approach for the resection of benign cervical spine tumors in 8 patients at our hospital from October 2013 to October 2015.

[Analysis of the causes of immediate bleeding after pediatric adenoidectomy].

Objective: To evaluate the incidence of postoperative hemorrhage in children undergoing adenoidectomy, and to discuss its possible causes.

Methods: Included in this study were children who underwent adenoid and/or tonsil surgery at Shenzhen Children's Hospital between January 2004 and November 2009. The change of hemoglobin (Hb) and hematocrit (Hct) were retrospectively analysed.

Clinical research of intraoperative image-guidance in endoscopic nasocular operation.

Aim: To evaluate the availability and our experience of intraoperative image-guidance in endoscopic nasocular operation.

Methods: Seven cases of endoscopic nasal surgery with intraoperative image-guidance were retropectively reviewed, including 3 cases of optic nerve injury; 3 cases of foreign object of optic behind the eyeball; 1 case of retrobulbar tumor (angeioma).

Results: The preoperative preparatory time would take 15 minutes, including coordination, head holder localization, conventional instrument registration.

Identification of epidermal growth factor receptor (EGFR) exon 20 single nucleotide polymorphism in Chinese squamous cell carcinoma of head and neck (SCCHN).

Conclusion: The 78th single nucleotide polymorphism (SNP) in exon 20 of epidermal growth factor receptor (EGFR) might be a predictor of the clinical course of squamous cell carcinoma of the head and neck (SCCHN), and genetic predisposition could influence the progression of SCCHN in Chinese subjects.

Objective: To analyze the clinical significance of EGFR SNP in Chinese SCCHN patients.

Materials And Methods: Direct sequencing of exons 18-21 was used to analyze somatic mutations of EGFR.

[Expression of growth hormone receptor in hepatocellular carcinoma and its significance].

Background & Objective: Recombinant human growth hormone (rhGH) has been proved effective in clinic, such as promoting protein synthesis and decreasing the mortality. But there are still many arguments on whether it can be used in hepatocellular carcinoma (HCC) patients. rhGH cannot work except that it combines to its own receptor growth hormone receptor (GHR).