Objective: The effect of pingyangmycin(PYM) in treatment of venous-venular malformation(mixed hemangioma) of the children was evaluated. Methods: Three hundred and twenty-five(132 male patients,193 female patients) patients with venous-venular malformation in the facial-neck and limbs and body regions of the children between January 1998 and January 2005 were reviewed.Patients ages were between one month and 12 years.Among others ages of 175 patiets were ≤ 6 month(53.85%).Pingyangmycin was injected into the cavity or in the circumference of the venous-venular malformations,and the injected was repeated every 7-10 days.This process may be repeated 3-5 times. Results: Three hundred and twenty-five patients were followed up for 6 months-7 years.The cured was 162 cases((49.85%)),basically cured was 124 cases(38.15%),getting improvement was 10.46%.Cure and basically cure rate were 88.00%.The total efficiency was 98.46%. Conclusion: This method was a safe,simple and effective therapy for the venous-venular malformation in the facial-neck and body-limbs regions of the children.

Congenital absence of major salivary glands is a sort of infrequent salivary glands abnormality.This disease can be diagnosed by nuclide raster display and its anatomy image can be identified by CT or MRI.We reviewed the etiological factor,clinical situation,diagnosis and therapy of this disease,and pointed out that gene and development checks are necessary to classify it as a hereditary disease.

Objectives:The effects of pingyangmycin(PYM) in the treatment of cavernous hemangioma, strawberry hemangioma and mixed hemangioma in the oromaxillofacial and intraoral regions is evaluated.　Methods:450 cases of hemangioma in the oromaxillofacial regions from January 1993 to January 1999 were reviewed. PYM was injected into the cavity or in the circumference of the hemangioma, and the injection may be repeated every 7～10 days for 3～5 times.　Results:450 patients were followed-up for 6 months～6 years. 86.89% were cured and nearlly cured,and 12% were improved. The total efficiency rate was 98.86%. The cure and elementary cure rates of cavernous hemangioma, strawberry hemangioma and mixed hemangioma were 91.04%, 86.08% and 78.01%, respectively, but the elementary cure rate of the wine color stainscapillary hemangioma was 14.29% only.　Conclusions:This method may be a safe, simple and effective therapy for cavernous hemangioma, strawberry hemangioma and mixed hemangioma in the oromaxillofacial regions.

Objectives:To evaluate the efficiency of packing jaw defects with a composite of coral and bone marrow.　Methods:Twelve patients (9 with jaw cyst and 3 with ameloblastoma) underwent enucleation of jaw lesion and packing with a composite of coral and bone marrow.Repair of the bone defects was evaluated at 1 week,1,6 and 12 months postoperatively by clinical examination and X-ray films.　Results:Wound healing after the operations on 10 patients was uneventful,and definite ossification around the implanted material could be detected at 1 month postoperatively.A lot of bone formation and partial resorption of coral were observed at 6 months postoperatively.Complete resorption of coral and complete bone repair were obtained at 12 months postoperatively.Wound breakdown was observed on two other patients,and the composite had to be removed completely.　Conclusions:A composite of coral and bone marrow may enhances bone healing in jaw defects after cyst or ameloblastoma removal.

Objectives: To study the histopathological grading and the clinical-staging system on the surgical prognosis in patients with mucoepidermoid carcinoma(MEC) of the salivary glands. 　Methods: Analysis were made to the primary sites, clinical findings and the correlation between the histopathological-grading/clinical-staging system and the surgical prognosis in 43 patients with pathological evidence of MEC. 　Results: Recurrence or regional lymph node metastasis were diagnosed in 6 of the 36 MEC patients, among which 4 were well differentiated and 2 were poorly differentiated, 1 was in stage Ⅰ to Ⅱ, and 5 were in the stage of Ⅲ or Ⅳ, there were 23 survivors. Thirteen of the 36 patients died, 4 of whom from MEC and 9 from reasons not related to MEC. All the died were in stage Ⅲ or Ⅳ. 　Conclusions: Recurrence or metastasis of MEC correlates with clinical-staging, but not related to the histopathological grading, this suggested that ablative surgery of the primary tumor and dissection of the regional lymphatic system are required in cases of Ⅲ and Ⅳstage MEC. Postoperative irradiation is proposed in the event of inadequate resection.