The clinical application of 18F-FDG PET/CT in thyroid tumor is primarily for restaging of patients with DTC but having a negative 131i whole-body scan in the presence of elevated serum Tg and TgAb levels.In parallel with the accumulation of clinical experience and increasing clinical utilization of 18F-FDG PET/CT,the application of 18F-FDG PET/CT in thyroid tumors is also broadened.This review aims at updating the application of 18F-FDG PET/CT in different types of thyroid tumors.

Hepatic vein hemorrhage and air embolism are easily caused during the resection of the tumor involving the second hepatic hilum.Hepatic vein occlusion has been proven to decrease this risk,while classic selective hepatic vein occlusion with tourniquet is technique demanding.We modified the classic method by using Satinsky clamp in hepatic vein dissection and occlusion.Based on the clinical data of 220 patients who received hepatic vein occlusion with tourniquet and 330 patients with Satinsky clamp,we proved that hepatic vein occlusion with Satinsky clamp is simpler,safer and with high success rate.

Objective This paper provides an anatomical and theoretic basis for the reverse transposition of proximal ulnar or radial periosteal flap to repair non-union in distal humerus.Methods The origin,course,meanwhile,the outside diameter and length of relevent vessels were measured,on 30 upper limb cadaveric specimens.Results The recurrent interosseous,radial recurrentand the posterior branch of radial collateal arteries,their origin outside diameter and length from the origin to the humerus extermal epicondyle were (1 47?0 2)mm,(65 1?9 5)mm,(2 1?0 3)mm,(63 7?0 8)mm,(1 48?0 22)mm and (104 5?8 9)mm,respectively.Anastomoses pattern existed 3 types: in vicinity of the external epicondyle"Reverse Y"73 3%(22 cases)."Meeting in one point 13 3%(4 cases)"."Arteries networks"13 3%(4 cases).Conclusions It's possible that the reverse transposition of proximal ulnar or radial periostea flap pedicled with recurrent interosseous membrane or radial recurrent vessel for repairing non-union in distal humerus.

Retrograde caudate lobectomy is a proper technique to resect the tumor in caudate lobe when the tumor is too big or closely adherent to the inferior vena cava.A male patient aged 44 years was admitted to the Eastern Hepatobiliary Surgery Hospital in November 2007.The ligaments around the liver were firstly dissected to mobilize the whole liver,and the right hepatic pedicle was dissected and ligated,then the liver was splited anteriorly along the Cantlie's line.The tumor was opposed in the sight and then it was dissected from the liver parenchyma.The short hepatic veins were ligated and the tumor was detached from the inferior vena cava.The inflow blood was occluded for 19 minutes,and the total blood loss was 4500 ml.The technique of retrograde caudate lobectomy can improve the success rate and safety of caudate lobectomy when the tumor in the caudate lobe is too large or adherent to the inferior vena cava.

Total caudate lobectomy via anterior hepatic transection is still a new technique to resect the tumor in the caudate lobe,which is mastered only by few surgeons.The procedure was successfully performed on a 21-year old patient with focal nodular hyperplasia in caudate lobe.The right and left lobes were first mobilized,then the short hepatic veins were dissected to detach the caudate lobe from the retrohepatic vena cava.Then the liver was split anteriorly and the partial middle lobe was resected.With this process,the tumor was in the sight and we dissected it from the liver parenchyma.The inflow blood was occluded 3 times with a period of 29,27 and 27 minutes,respectively,with an interval of 5 minutes.The total blood loss during operation was 1000 ml.The patient recovered quickly without any complications.The technique for caudate lobectomy via anterior hepatic transection can improve the success rate and safety of caudate lobectomy and deserve clinical consideration.

To observe whether plasma levels of lysophosphatidic acid (LPA) can be decreased in patients with cerebrovascular diseases after the treatment with aspirin. Methods:A total of 1,400 patients were recruited. Among them,803 patients were diagnosed as probable ischemic stroke,and 343 patients were diagnosed as ischemic stroke. Thirty-four health volunteers were used as control subjects. The levels of LPA were measured by chromatography with the combination of inorganic phosphorus quantitative method. Results: The levels of LPA in the ischemic cerebrovascular group (3.11 ± 1.55 μmol/L) were significantly higher than those in the control group (1.77 ± 1.04 μmol/L) (P < 0.001). Taking aspirin (80 mg,qd) for one month significantly decreased the levels of LPA. After stopping aspirin for one month,the level of LPA re-elevated (3.90 ± 1.09 μmol/L),was higher than that during administration of aspirin (1.93 ±0.85 μmol/L(P <0.001). Conclusions: There are close correlations between the increased levels of LPA and the platelet activation. Aspirin decreases the level of plasma LPA;this may be one of the mechanisms of aspirin in prevention against ischemic stroke.

BACKGROUND:The complex relationship between bone marrow mesenchymal stem cels and cancers severely limit the clinical application of mesenchymal stem cels. So it is urgent to study the role of mesenchymal stem cels in tumor growth and metastasis.
OBJECTIVE:To explore the effect of human bone marrow mesenchymal stem cels on epithelial mesenchymal transition in non-smal cel lung cancer A549 and PAa cels.
METHODS:The A549 and PAa cels were cultured with mesenchymal stem cel supernatant (mesenchymal stem cel conditioned medium, MSCs-CM). The celular morphology was observed under a microscope. The mRNA and protein expression of E-cadherin, N-cadherin, Vimentin, Slug, Snail, and Twist were determined by RT-PCR and western blot. Transwel and wound healing assay were used to detect the change of migration and metastatic ability.
RESULTS AND CONCLUSION:Compared with the control group, the celular morphology of experimental group showed mesenchymal-like changes. In response to MSCs-CM, there was decreased E-cadherin but increased N-cadherin, Vimentin and Slug, Snail, Twist at mRNA and protein levels compared with the control group (P < 0.05). The migration and metastatic abilities of the experimental group were also increased. So, human bone marrow mesenchymal stem cels can promote epithelial mesenchymal transition in A549 and PAa cels, and enhance the migration and metastatic abilities of A549 and PAa cels.

Objective To compare 18F-FDG、11C-MET and 11C-CHO PET/CT in rat C6 glioma and inflammation models and observe their correlations with HIF-1α and VEGF expressions.Methods Thirtytwo male Wistar rats were included to bear both C6 glioma and turpentine oil-induced acute inflammation (AI).18F-FDG,11C-MET and 11C-CHO PET/CT were performed on rats.The SUVmax ratios of tumor-tomuscle (T/M),AI-to-muscle (AI/M) and tumor selectivity index (SI) were calculated.One-way analysis of variance and two-sample t test were used for statistical analyses.HIF-1α and VEGF expression was detected by immunohistochemical staining.Spearman correlation analysis was performed to evaluate the relationship between T/M ratios and the expressions of HIF-1α or VEGF.Results T/M ratios of 18F-FDG,11 C-MET and 11C-CHO in C6 glioma were 6.89±2.53,2.75±0.87,2.73±1.01,and the AI/M were 4.77±2.21,1.75±0.66,2.23±0.90 respectively.The 18F-FDG and 11C-MET uptake between C6 glioma and AI were significantly different(tFDG =2.133,tMET =3.267,both P＜0.05).The SIMET was significantly higher than SIFDG(t =2.600,P＜0.05).The 11C-CHO uptake between tumor and inflammation showed no significant difference(t=1.537,P＞0.05).T/M ratios of 18F-FDG and 11C-MET were positively related to HIF-1α and VEGF expressions(rs =0.725,0.637,0.621,0.764,all P＜0.05).The T/M ratio of 11C-CHO related only to VEGF (rs =0.682,P＜0.05).Conclusions 18F-FDG and 11 C-MET PET/CT may differentiate C6 glioma from AI,and 11 C-MET PET/CT seems more tumor-selective.11C-CHO PET is less valuable for the differential diagnosis.The 18F-FDG and 11 C-MET uptake of C6 glioma may be related to tumor hypoxia.All the three tracers could reflect tumor angiogenesis,but with different sensitiveness.

Objective To enhance the cognition about the adult contagious atypical pneumonia for an expectation of earlier diagnosis, prevention and treatment.Methods We analyzed and summarized X-ray lung and clinical characteristics of 34 patients with contagious atypical pneumonias who were admitted to our hospital from Feb to April. 2003.Results X-ray findings of lung were characterized by mostly involving unilateral and presenting ill defined cloud or patches-form opacities. These lesions progressed and varied rapidly. The clinical manifestations were characterized by the onset of fever (34/34), mostly associated with systemic and joint aching pains (29/34) and dry coughs (29/34). Leucocyte counts showed normal or lower than normal. Patient with a continuing high fever might tend to develop ARDS (2/34). All the 34 patients recovered after combined therapies (anti-inflammation, anti-virus and promoting immunity ) and were discharged from hospital. The average in-hospital days were (10.6?4.2) days. Conclusion X-ray examination is the main method for the early diagnosis and observing state-variation. The predominant clinical features of this disease are fever, dry cough, aching pain in extremities, unconspicuous pulmonary signs as well as hemogram not rising, a continuing high fever may lead to the tendency of ARDS.

Objective To observe the effects of different antithrombotic interventions on the changes of plasma lysophosphatidic acid (LPA) level in patients with nonvalvular atrial fibrillation (NVAF) and to provide the basis for clinical antithrombotic therapy. Methods A total of 235 patients with NVAF who did not receive antithrombotic therapy diagnosed by clinical and auxiliary examinations were randomly allocated to receive aspirin (100 mg/d) plus dipyridamole (100 mg/d) (n =76), aspirin (100 mg/d) plus fixed-dose warfarin (1.25 mg/d) (n =79), and dose-adjusted warfarin (international normalized ratio (INR) range of 1.5 to 2. 1) (n =80). They gore redivided into <60, 60-75, and ≥76 year-old groups according to their age. The plasma LPA levels were measured and compared before treatment and 2 and 6 weeks after treatment. Results 1he plasma LPA levels were decreased more significantly in the aspirin plus fixed-dose group than those in the aspirin plus dipyridamole and dose-adjusted warfarin groups (all P < 0.01). Two and 6 weeks after treatment with aspirin plus dipyridamole in the < 60 year-old group, the plasma LPA levels were significantly lower than those before treatment (all P<0. 01). Two and6 weeks after treatment with aspirin plus fixed-dose warfarin in the < 60 year-old group, the plasma LPA levels were significantly lower than those before treatment (all P <0. 01). Two and 6 weeks after treatment with aspirin plus fixed-dose warfarin in the 60-75 year-old group, the plasma LPA levels were significantly lover than those before treatment (all P <0.01). Two and 6 weeks after the treatment with dose-adjusted warfarin (INR 1.5-2. 1) in patients in each age group, the plasma LPA levels were significantly lower than those before treatment. Conclusions 1he different antithromhotic therapeutic modalities have different effects on platelet activation in patients with NVAF in different age groups. The patients in the < 60 year-old group can receive aspirin plus dipyridamole, the patients in the < 75 year-old group can receive aspirin plus fix-dose warfarin, and the patients > 75 year-old, dose-adjusted warfarin (INR 1. 5-2. 1) should he recommend.