Dentigerous cyst of maxilla is a rare disease in department of otorhinolaryngology. More than 2 week persistent infection of the cortex that is surrounded by dense bone and then begins absorption causing the formation of dentigerous cyst. One tooth germ or multiple tooth germs can be seen in the cysts, mostly in the third molar area and canine area. However, it is extremely rare that so huge dentigerous cyst of maxilla, in which include three additional teeth, that is why we report it.
Child ; Dentigerous Cyst ; Humans ; Male ; Maxilla ; pathology

Objective:To detect expression of SNCG and CXCR4 mRNA in gastric adenocarcinoma and evaluate its function in carcinogenesis, progression, infiltration, and metastasis, as well as the correlation of these proteins. Methods:The expression of SNCG and CXCR4 mRNAs was detected using reverse transcription-polymerase chain reaction in gastric adenocarcinoma and normal gastric mucosa. Results:The expression of SNCG and CXCR4 mRNAs was obviously higher in gastric adenocarcinoma than in normal gastric mucosa (P<0.01). The expression of SNCG mRNA was closely correlated with tumor infiltration depth (P<0.05) and lymph node metas-tasis (P<0.01). The expression of CXCR4 mRNA closely correlated with lymph node metastasis (P<0.01). The expression of SNCG and CXCR4 mRNAs positively correlated in 29 cases of gastric adenocarcinoma (r=0.346, P<0.05). Conclusion:SNCG and CXCR4 may be overexpressed in tumor tissue and may have important functions in tumorigenesis, progression, infiltration, and metastasis of gastric adenocarcinoma.

Objective To develop a simple, rapid, accurate method to determine selenium in human hair. Methods Digested in the superior grade pure nitric acid, Ni(NO3)2?6H2O was used as the improver and the content of selenium in the hair samples was determined by graphite furnace atomic absorption spectrometer. Results Under the designed standard conditions, the detection limit was 0.004 mg/L, in the range of 0.008-0.04 mg/L, the linearity relevance coefficient of absorbency and concentration was 0.996 9, the RSD was 3.7%. At the level of 0.01 mg/L, the recovery rates were 93.8%-98.8%. Conclusion The method is simple, rapid, accurate and is suitable for the determination of selenium in the hair.

Objective To investigate the clinical values of antineutrophil cytoplasmic antibody (ANCA) detection in the diagnosis of rheumatic diseases .Methods 965 patients with rheumatic diseases were taken as rheumatic group ,including 256 cases of SLE , 124 of mixed connective tissue disease(MCTD) ,336 of rheumatoid arthritis(RA) ,166 of Sjogren′s Syndrome(SS) ,45 of systemic sclerosis(SSc) and 38 of dermatomyositis .400 healthy people were served as the control group .Indirect immunofluorescence (IIF) was employed to detect the cytoplasmic ANCA (c-ANCA ) ,perinuclear ANCA (p-ANCA ) .Enzyme-linked immunosorbent assay (ELISA) was utilized to assay the anti-myeloperoxidase(MPO) antibody among patients with positive ANCA .Results Difference of positive rates of serum ANCA of subjects in rheumatic group and control group showed statistical significance (P<0 .01) ,and the differences of positive rates of serum p-ANCA and c-ANCA of subjects with positive ANCA between the two group were also sta-tistically significant(P<0 .01) .The positive rate of serum p-ANCA of patients with SLE was markedly higher than those with MCTD ,RA ,SS ,SSc ,dermatomyositis and healthy people in control group (P< 0 .05) ,while that of patients with MCTD was obviously higher than those with RA ,SS ,SSc ,dermatomyositis and healthy people in control group (P<0 .05) .The positive rate of anti-MPO antibody of 165 patients with positive ANCA in rheumatic group was 58 .4% ,which was significantly higher than that in control group(3% )(P<0 .01) .The positive rate of patients with positive ANCA and impaired renal function in rheumatic group was 55 .4% ,which was obviously higher than those of patients with negative ANCA in rheumatic group (21 .8% ) and control group (6 .25% )(P<0 .01) .Conclusion Serum ANCA detection is of important significance for prevention of nephrotoxic damage in pa-tients with rheumatic diseases .

Objective To carry out unified regulation to the purchase, using and administration of the surgery material, thus to improve the quality of medical work and the level of medical administration. Methods For the one-shot things, interlink administration was needed. For the precision instrument, we carried out the responsibility system within every specific section office, and the administration with pictures and codes. For the expensive instruments and equipments, we made registration and carry out personal responsibility system. We analyzed the existing problems and expected the computer network administration in the future. Results No surgery was affected because of the shortage of materials or the damage of the instruments or equipments. Conclusions With the efficient administration of the surgery material, we can improve the nursing quality in the operation room, avoid medical disputes, and make sure smooth operation, thus every patient can recover soon.

Objective To study the characteristics of the serum free light chain ( sFLC ) and cytokines levels and the effects of cyclophosphamide (CTX) on patients with primary Sj(0)gren's syndrome (pSS) complicated with amyloidosis.Methods Nine patients of pSS with amyloidosis who were admitted to Department of Rheumatology of the hospital from Jan 2005 to Mar 2011 were selected.The serum levels of sFLC and cytokines TNF-α,TGF-β1,IL-4 were measured before and 3,6,12 months after the treatment respectively.Meanwhile,Twelve patients with pSS without complications were selected as controls.Repeated measures analysis of variance was used for data analysis.Results The sFLC in serum of pSS patients with amyloidosis was λ type,the κ type was not found.The level of serum sFLC after 12 months treatment [(22±42) mg/L]was significantly lower than before treatment [(180±15) mg/L].The levels of TNF-α,TGF-β1,IL-4 after 12months treatment [(24.0±1A),(58±5),(38.8±3.2) ng/L,respectively] were significantly lower than before treatment [(31.1±L0),(65±5),(61.2±3.8) ng/L,respectively].Conclusion The levels of serum sFLC and eytokines are abnormally increased in patients of pSS with amyloidosis.After treatment,the levels of cytokines are decreased initially which indicates that these cytokines may play a key role in the pathogenesis of pSS.CTX therapy may lead to better efficacy and more favorable prognosis.

Objective:To investigate the expression of C-X-C chemokine ligand-14 (CXCL14) and epidermal growth factor receptor (EG-FR) in human gastric cancer and to analyze the relationship of CXCL14 with clinicopathological features. Methods:The expression of CXCL14 and EGFR was detected by Immunohistochemical SP method in 121 cases of gastric cancer tissue, 62 cases of the adjacent non-tumor gastric mucosa, and 60 cases of allogeneic non-tumor gastric mucosa. Results:The positive rates of CXCL14 and EGFR expres-sion were 80.17%and 48.76%in gastric cancer, respectively, and both were significantly higher in the adjacent non-tumor gastric mu-cosa and allogeneic non-tumor gastric mucosa. The differences were significant (P<0.01). Overexpression of CXCL14 was closely corre-lated with the depth of cancer invasion, differentiation, and clinical stage, and the differences were significant (P<0.05). Overexpres-sion of EGFR was correlated with cancer differentiation, lymph node metastasis, and clinical stage. The differences were significant (P<0.05). Based on the Spearman correlation analysis, the expression of CXCL14 and EGFR in gastric cancer was positively correlated (rs=0.195, P<0.05). Conclusion:Abnormal CXCL14 expression in gastric cancer may be associated with the occurrence and development of gastric cancer. CXCL14 expression is positively correlated with EGFR expression, suggesting that the two have a synergistic effect in gas-tric cancer development.

Objective To evalute the value of spiral CT in diagnosis and treatment of chronic suppurative otitis media.Methods Sixty-five cases including seventy-nine ears underwent the direct axial plane and coronal multiplanar reformation and three-dimensional reconstruction of auditory ossicular chain in chronic suppurative otitis media spiral CT imaging of temporal bone. Results The direct axial plane and coronal multiplanar reformation in diagnosing of the chronic suppurativeotitis media were correspondent,but in showing of the most middle ear structure were difference. Three-dimensional images was superior to axial and coronal MPR images in showing of the change of malleus and incus,the contrary situation in showing stapes. Only 3D image may not select application for definition.The rate of agreement between spiral CT diagnosis by combination of three different imaging methods and definition of chronic suppurative otitis media and operative findings(89.9%～97.5%) were higher, false positive rate(2.9%～6.0%) and false negative rate(0～14.6%) of the CT diagnosis were lower.Conclusion Combination of three different imaging methods(axial images, coronal MPR images and three-dimensional images of the ossicular chain) can improve the value of the spiral CT diagnosis and therapy of chronic otitis media.

Objective To explore CT diagnosis of atypical meningioma .Methods 18 cases of atypical meningioma were undergone MR plan scans, among them,17 cases were examined by CT contrast scans. All cases were proved by operation and pathology.Results The tumors appeared as mixed density in 11 cases,cystic in 4 cases,complete enhancement in 3 cases.Conclusion The tumors to be comfirmed at external cerebra is the key in diagnosing atypical meningioma exactly by CT.Atypical manifestations can be seen in a few meningiomas,therefore, it is significant in differential diagnosis of meningioma.

Objective To analyse the features of vertebral hemangioma and inaging diagnostic value of vertebral hemangioma.Methods There were 14 cases with hemangioma proved by clinic and pathology.X-ray plain was performed in all cases,of which 9 cases were performed by CT scan and,only 6 cases were taken MR,and 2 cases had both CT and MR scan.Results The tumors were located in thoracic spine in 10 cases,in lumbar spine in 3 cases and in cervical spine in 1 case.8 cases showed typically fence-like or nest-like;the verterea were irregularly destroyed in 5 cases,of which 2 cases were associated with vertebrea collapsing.According to the features in plain film and CT scan,there were 2 cases misdiagnosed,but 6 cases were all made a correct diagnosis on the base of MR before surgry.Conclusion Typical vertebral hemangima can be diagnosed correctely according to plain film or CT while MR plays an important role in atypical cases.