Objective To study CT and MRI manifestation of untypical cystic lymphangioma.Methods CT and MRI findings of 8 cases of cystic lymphangioma proved surgically and pathologically were analyzed retrospectively.7 cases were performed by CT and the other by MRI.Results 3 lesions are located at facies cranii,2 lesions at neck,2 lesions are located at mesostenium and 1 lesion is located at chest wall.CT and MRI findings include:(1)dense mass(5 cases);(2)lesion contain solid and water dense(2 cases);(3)lesion contain high dense hematoma(2 cases);(4)calcification in lesion(2 cases);(5)infiltrate the adjacent tissue(3 cases).Conclusion Most majority cystic lymphangioma can be identified by CT and MRI which also helpful to evaluation lymphangioma before surgical treatment.

Animals ; Antitussive Agents ; pharmacology ; Drug Evaluation, Preclinical ; methods ; Female ; Male ; Mice

Objective To adopt the cone beam computed tomography(CBCT) to analyze the bone thickness of infrazygomatic crest with different vertical skeletal facial types in teenagers.Methods Sixty teenagers of skeletal class were collected,including each 20 cases of high angle,average angle and low angle.The CBCT scanning data of oral maxillofacial region were collected.The bone thickness at different coronary slices in buccal side of infrazygomatic crest region at 13,15,17 mm above the maxillary occlusal plane was measured.The measured data were analyzed statistically.Results The bone thickness of infrazygomatic crest was gradually thinned from down to up,and the difference was statistically significant(P＜0.05);the bone thickness(except 3 points at 13 mm from maxillary plane) at each measured point in the high,average and low angle groups showed the change trend of low angle ＞average angle＞high angle,the difference was not statistically significant(P＞0.05).Conclusion In teenagers,the bone thickness of infrazygomatic crest in skeletal class Ⅱ is gradually thinned from cranial direction and rearward,the high angle is thinnest and the low angle is thickest.

12E7 Antigen ; Adult ; Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Chondrosarcoma, Mesenchymal ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Hemangiopericytoma ; pathology ; Humans ; Lymphoma ; pathology ; Male ; Nasal Cavity ; Neuroectodermal Tumors, Primitive ; pathology ; Nose Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism ; Young Adult

Objective To investigate clinicopathological features of endometriosis-associated epithelial ovarian carcinoma.Methods Retrospective follow-up study,clinicopathological data from patients with ovarian epithelial carcinoma were retrieved,analyzed and compared.Among the 727 cases,34 were found to originate from endometriosis (group A),33 were found to have co-existing ovarian endometriosis (group B),and the remaining 660 had no ovarian endometriosis at all (group C).Result Seven hundred and twenty-seven epithelial ovarian carcinoma patients were identified and their ehnicopathological data retrieved.Sixty-seven (9.2%) of these cases were found to have coexisting endometriosis.The frequency of malignant tumors arising from ovarian endometriosis in this case series was estimated to be 0.87% (34/3890).The mean (standard deviation) age in groups A,B,and C were(47.2±1.3),(47.8±1.2),(51.2±0.4) years,respectively,with patients in group C being significantly older (P = 0.013).Patients with coexisting ovarian endometriosis were mostly diagnosed at stage Ⅰ (P = 0.000)and having subtype of clear-cell (P =0.000),while other patients were mostly diagnosed at stage Ⅲ (P =0.001),and having subtype of serous carcinoma (P =0.000).The estrogen receptor (ER) positivity was significantly lower in groups A and B than that in group C (22.2%,31.6% vs 43.9%;P =0.018),but the difference in positivity of progestogen receptor among the three groups did not reach statistical significance (22.2%,15.8% vs 35.5%;P =0.082).While the five-year overall survival rate for all patients was 55.6%,significant difference in overall survival among the three groups was found 78.9%,92.8%,51.9%,respectively,for groups A,B and C (P =0.000).Conclusion Patients of endometriosis-associated epithelial ovarian carcinoma,especially patients with tumors arising from endometriosis,were found to be younger,having a significant lower stage and a better survival,and were mostly diagnosed with the subtype of clear-cell.

Objective To investigate the molecular expression and clinical significance of Vimentin and E-cadherin during epithelial-mesenchymal transformation of hepatocellular carcinoma (HCC) tissues.Methods Hepatocellular carcinoma and paracancerous tissue were collected from 55 patients,while nonneoplastic nonnal liver tissue were collected from 20 patients without cancerous diseases as control group.Expressions of Vimentin and E-cadherin were examined by immunohistochemistry staining.Clinicopathological features of the relative expression of Vimentin and E-cadherin,and its influence on prognosis were discussed as well.Results Vimentin was positively expressed in 69.1％ cancer tissue,and was significantly higher than paracancerous tissues and normal liver tissues(P ＜ 0.05).E-cadherin was positively expressed in 27.3％ cancer tissue and was significantly lower compared with paracancerous tissues and normal liver tissues(P ＜0.05).The expression of Vimentin and E-cadherin was negatively correlated(r =-0.653,P ＜ 0.05).Vimentin expressions in subgroups of TNM stage Ⅲ-Ⅳ,poor differentiation,multiple tumor nodules,metastasis and recurrence were all significantly higher than the respective subgroups as TNM stage Ⅰ-Ⅱ] (x2 =7.267,P ＜ 0.05),moderate to well differentiation (x2 =4.045,P ＜ 0.05),single tumor node (x2=12.143,P ＜0.05),without metastasis or recurrence (x2 =7.267,P ＜ 0.05).On the contrary,Ecadherin showed higher expression in the subgroup of single tumor node compared with multiple tumor nodules(x2 =6.878,P ＜ 0.05).The follow-up of patients further demonstrated that patients with positive Vimentin expression had a significantly lower disease-free survival compared with the Vimentin negative group (P ＜0.05).Conclusions Vimentin and E-cadherin both participated in epithelial-mesenchymal transition process of hepatocellular carcinoma.High expression of Vimentin and low expression of E-cadherin were closely correlated with occurrence and development of HCC.Vimentin and E-cadherin may serve as impottant biomarkers in clinical diagnosis and prognosis prediction of HCC.

Aldehyde Oxidoreductases ; deficiency ; Child, Preschool ; Female ; Humans ; Metabolism, Inborn Errors ; diagnosis ; enzymology ; metabolism ; Succinate-Semialdehyde Dehydrogenase ; gamma-Aminobutyric Acid ; metabolism

Objective To observe the effects of porous polylactic acid/polyglycolic acid copolymer(PLGA) filling into extraction socket on the regeneration of alveolar bone in rats.Methods Sixty male Wistar rats were divided into experimental group and control group(n=30).PLGA scaffold was immediately implanted in the mandibular incisor root sockets after removal of incisor teeth.Soft X-ray photography,structural observation,light microscopy were used to evaluate the effects of composite on bone healing in a rat tooth extraction socket.Results The relative lengths of residual alveolar ridge in the experimental group 4,8 weeks after operation were shorter than that in the control group,and there were significant differences between the experimental group and the control group(P

Objective To investigate the dedifferentiation of neuroglial cells and its induction after optic nerve injury. Methods Adult male SD rats were randomly divided into 4 groups the normal control group,the injury group,the transplantation group and the microcrush and transplantation group.Optic nerves were harvested at days 3,7,14 and 28 after the operation.HE staining was used to count the number of neuroglial cells.Immunohistochemistry,Western blotting and in situ hybridization histochemistry were employed together with computerized image analysis to evaluate the expressions of Nestin,GFAP,MBP,NF,BDNF,Nogo-A and Nogo-A mRNA.Immunofluorescence double staining was used to detect the co-expression of Nestin and GFAP or Nestin and MBP. Results The number of cells only increased at day 7 after the nerve injury, the expressions of Nestin,MBP,Nogo-A and Nogo-A mRNA were up-regulated,the expressions of GFAP,NF and BDNF were down-regulated,and some Nestin-GFAP positive cells and a few of Nestin-MBP positive cells were detected in the injury group.Compared with the injury group,the number of cells was increased sometime after the nerve injury;the expressions of Nestin,GFAP,BDNF and NF were up-regulated,the expressions of MBP,Nogo-A and Nogo-A mRNA were down-regulated,and the number of Nestin-GFAP positive cells increased in the transplantation group and the microcrush and transplantation group.Conclusion After optic nerve injury,some astrocytes undergo dedifferentiation while the macroglial cells display a gene expression pattern that is unfavorable for nerve regeneration.Pre-degenerated peripheral nerves could enhance the dedifferentiation of astrocytes and induce the gene expression pattern of macroglial cells that is favorable for nerve regeneration.

Objective To label the amino-glucomannan(AGM) with fluram and to explore the properties of the compound of fluram-AGM in transmembrane transport.Methods After AGM was labeled with fluram,the peripheral blood mononuclear cells(PBMC) and HepG2 were respectively cultured with Fluram-AGM,then observed under fluorescence microscope with violet light as exciting light.Results Both PBMC and HepG2 showed intracellular indigotic fluorescence.Conclusion AGM can be transported into cells across cell membrane.