Objective To explore pre-service training model and its efficacy for medical undergraduate interns.Methods Anonymous questionnaire survey was conducted for 50 medical undergraduates by teaching management staff.Results Totally 62％ students thought that pre-practice training was necessary,62％ students commented that the arrangement of this pre-practice training was reasonable and feasible,more than 95％ students supported the content and form of this training and more than 95％ students believed that pre-practice training can culture the sense of organizational discipline,foster favorable doctor-patient relationship and promote clinical knowledge and skill acquisition.In general,medical undergraduates had high degree of recognition after systematic training.Conclusion A set of standardized pre-practice training programs should be summarized and constantly be refined and improved so as to ensure the training quality.

Objective To investigate the score changes of graduates majoring in clinical medicine after using the method of “role of identification”. Methods Sixty students who were undertaking internship in Endocrinology Department of Shanghai Traditional Chinese Medicine Hospital received three-week clinical teaching and examination. Then they got into one-week “role of identification”, and were appointed as clinical teachers to teach what they have learned during the last 3 weeks to the next batch of interns and make another examination. Scores of the two examinations were compared. Results Scores of the examination after received the method in“role of identification”improved significantly (P<0.01). Conclusion The method of“role of identification”can enhance clinical medicine graduates’ mastery of professional knowledge.

Oral and maxillofacial microsurgery has its own characteristics, including high precision, complicated operation, and long learning curve. It is important for young oral and maxillofacial surgeons to master the basic operation skills through standardized and systematic training.Department of Oral & Maxillofacial-Head & Neck Oncology of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine gives systemic teaching course for senior resident doctors or young attending surgeons. The teaching teams make an intensive course organization and focus on the practical training. They integrat theoretical teaching, basic skill training, gross anatomy training as well as operation observation into a systematic "four-stage ladder approach" , which make a better teaching effect in promoting the oral and maxillofacial surgeons to master the practical and correct microsurgery technique.

Oral and maxillofacial microsurgery has its own characteristics, including high precision, complicated operation, and long learning curve. It is important for young oral and maxillofacial surgeons to master the basic operation skills through standardized and systematic training.Department of Oral & Maxillofacial-Head & Neck Oncology of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine gives systemic teaching course for senior resident doctors or young attending surgeons. The teaching teams make an intensive course organization and focus on the practical training. They integrat theoretical teaching, basic skill training, gross anatomy training as well as operation observation into a systematic "four-stage ladder approach" , which make a better teaching effect in promoting the oral and maxillofacial surgeons to master the practical and correct microsurgery technique.

Oral and maxillofacial microsurgery has its own characteristics, including high precision, complicated operation, and long learning curve. It is important for young oral and maxillofacial surgeons to master the basic operation skills through standardized and systematic training.Department of Oral & Maxillofacial-Head & Neck Oncology of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine gives systemic teaching course for senior resident doctors or young attending surgeons. The teaching teams make an intensive course organization and focus on the practical training. They integrat theoretical teaching, basic skill training, gross anatomy training as well as operation observation into a systematic "four-stage ladder approach" , which make a better teaching effect in promoting the oral and maxillofacial surgeons to master the practical and correct microsurgery technique.

Oral and maxillofacial microsurgery has its own characteristics, including high precision, complicated operation, and long learning curve. It is important for young oral and maxillofacial surgeons to master the basic operation skills through standardized and systematic training.Department of Oral & Maxillofacial-Head & Neck Oncology of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine gives systemic teaching course for senior resident doctors or young attending surgeons. The teaching teams make an intensive course organization and focus on the practical training. They integrat theoretical teaching, basic skill training, gross anatomy training as well as operation observation into a systematic "four-stage ladder approach" , which make a better teaching effect in promoting the oral and maxillofacial surgeons to master the practical and correct microsurgery technique.

Objective:Adenoid cystic carcinoma (ACC) is an uncommon malignant neoplasm, which mostly originates from the major and minor salivary glands of the head and neck region. This study aims to provide new information on head and neck ACC with cervical lymph node metastasis. Methods:Out of the 616 patients who underwent primary tumor resection from 1995 to 2008 in the authors' hospital, 62 cases with cervical lymph node metastasis were analyzed. Results:The general incidence rate of cervical lymph node me-tastasis in ACC was approximately 10%. The base of the tongue, mobile tongue, and mouth floor were the most frequent sites of lymph node metastasis with incidence rates of 19.2%, 17.6%, and 15.3%, respectively. Most cases exhibited the classictunnel-stylemetastatic pattern of occurrence, and the levelⅠb andⅡregions were the most frequently involved areas. Primary site and lympho-vascular invasions were significantly associated with lymph node metastasis. High patient mortality rate was also significantly correlat-ed with a high number of lymph node positive cases. Conclusion:Cervical lymph node metastasis has a high tendency of occurrence in the tongue-mouth floor complex, following the classictunnel-stylemetastatic pattern. Peritumoral lymphovascular invasion could be taken as a strong predictor for the occurrence of lymph node metastasis, which ultimately leads to poor prognosis of ACC patients. A selective neck dissection should be considered as a management in such patients.

Objective:To investigate the potential prognostic value of cyclin D1 expression in patients with locally advanced oral squamous cell carcinoma (OSCC) and its relationship with taxol (Docetaxel)/cisplatin plus 5-fluorouracil (TPF) induction chemothera-py. Methods:A total of 256 patients with locally advanced OSCC were selected from Shanghai Ninth People's Hospital of Shanghai Ji-ao Tong University School of Medicine between March 2008 and December 2010 as the objects of study in this prospective randomized clinical trial. The effect of TPF induction chemotherapy was investigated. Immunohistochemical staining against cyclin D1 was per-formed in the pretreatment biopsy specimen of the patients. The relationship between cyclin D1 expression and prognostic data of the TPF induction arm and control arm was analyzed. Results:Cyclin D1 expression was detected in 232 out of the 256 patients. Patients with low cyclin D1 expression showed significantly better overall survival (OS) (P=0.001), disease-free survival (DFS) (P=0.003), lo-coregional recurrence-free survival (LRFS) (P=0.004), and distant metastasis-free survival (DMFS) (P=0.001) than those with high cy-clin D1 expression. No significant differences existed in OS, DFS, LRFS, or DMFS between the patients with TPF induction chemother-apy and the control. Cyclin D1 expression levels were not predictive of the benefit from TPF induction chemotherapy in the overall pop-ulation. However, patients with nodal stage cN2 and high cyclin D1 expression, who were undergoing TPF chemotherapeutic regimen, showed significantly higher OS (P=0.024) and DMFS (P=0.024) than cN2 patients with high cyclin D1 expression but undergoing stan-dard surgical treatment. Conclusion:Cyclin D1 can be used as a prognostic biomarker for patients with locally advanced OSCC. Fur-thermore, cN2 OSCC patients with high cyclin D1 expression can receive long-term benefit from the addition of TPF induction chemo-therapy to standard surgical treatment.

To explore the clinical effect of microsurgery in the treatment of the tumor which was diagnosed with the plexiform neurofibroma (PN) of the forearm and palm. Methods From January, 2014 to June, 2017, 6 cases of the PN in the forearm and palm were removed by microsurgery such as neurovascular transplantation, separation and anastomosis under microscope, etc. There were 4 males and 2 females, with an average age of 9.2 (range, 2-18 )years. There was 1 case with PN of the median nerve, ulnar nerve and their branches in the right fore-arm and palm, 2 cases with PN of the median nerve and its branches in the right forearm and palm, 2 cases with PN of the median nerve and its branches in the left forearm and palm, and 1 case with PN of the ulnar nerve and its branches in the left forearm and palm.The postoperative function and feeling of the patients were evaluated by outpa-tient followed-up. Results The pathological results of 6 patients all showed PN, and their incisions healed primari-ly.The patients were followed-up for 6 to 36 months, with an average of 18 months. No obvious scar formation was observed in all incisions. Among them, PN of the palmar of the youngest patient recurred after the operation, and it was resected in a second operation.The remaining 5 patients had no recurrence during follow-up.The 2 point resolu-tion of each fingertip of the affected limb of the patients who had median and ulnar PN was 2-5 mm, with an average of 3.30 mm; the 2 point resolution of the thumb, indicator, middle and ring fingers of the affected limbs of the patients who had median PN was 2-5 mm, with an average of 2.95 mm; the 2 point resolution of the ring and little fingers of the affected limbs of the patients who had ulnar PN was 3-4 mm, with an average of 3.50 mm.According to the related evalu-ation criteria made by the American Orthopedic Foot and Ankle Surgery Society (AOFAS), the results of the forearm and hand functions were excellent in 5 cases, good in 1 case. Conclusion The application of microsurgical techniques in the treatment of PN in the forearm and palm can be effective separation of tumor and nerve fibers, effectively protect the branches of the median nerve and ulnar nerve and their blood circulation, prevent recurrence and reduce nerve damage after operation.

Objective To investigate the clinical treatment of patients with refractory plasma cell mastitis by fistulectomy combined with nipple correction,observe its clinical efficacy,and analyze its clinical practicability.Methods Nine patients with refractory plasma cell mastitis were treated from August in 2020 to March in 2022.Before operation,fistulectomy and nipple correction were performed after the local inflammation was controlled by oral Chinese medicine.After operation,routine surgical dressing changes were performed,and the clinical efficacy,satisfaction evaluation of postoperative breast appearance and recurrence rate were observed.Results All the nine patients were cured after operation and they were satisfied with their breast shape,and there was no recurrence within one year after operation.Conclusion Fistulectomy combined with nipple correction is a safe and effective method for the treatment of patients with refractory plasma cell mastitis.