Objective To evaluate the clinical efficacy of long-pulsed 1064 nm Nd ∶ YAG laser combined with intralesional injection of triamcinolone in the treatment of keloids.Methods A total of 78 cases were randomly divided into two groups.The treatment group was treated with long-pulsed 1064 nm Nd ∶ YAG laser combined with intralesional injection of triamcinolone.The control group was only given intralesional injection of triamcinolone.The efficacy and adverse reactions were determined at the end of the first and the second course,respectively,and follow-up for one year was conducted in order to observe the recurrence.Results When the first course was over,cure rate of 21.95 ％ and efficiency rate of 73.17 ％ were observed in the treatment group,while they were 10.81％ and 45.95 ％,respectively,in the control group; the efficacy rate was statistically significant different in these two groups (P＜0.05).After two courses,cure rate of 70.73 ％ and efficiency rate of 100 ％ were observed in the treatment group while they were 45.95 ％ and 83.78 ％,respectively,in the control group,showing that both of the rates were statistically higher in the treatment group (P＜0.05).Conclusions Compared to intralesional injection of triamcinolone,long-pulsed 1064 nm Nd ∶ YAG laser combined with injection of triamcinolone has a more satisfactory effect on keloids.

Objective To investigate the value of 18 F-fluorodeoxyglucose (18 FDG)positron emission tomography and computer tomography (PET/CT)in the diagnosis and localization of ectopic ACTH syndrome (EAS)induced by lung cancer,and to increase the accuracy rate of diagnosis of EAS.Methods 8 patients were histopathologically proven to be lung cancer.18 FDG PET/CT wholebody and brain scan were performed;magnetic resonance imaging (MRI),99m Tc-octreotide (OCT)imaging and inferior petrosal sinus sampling (IPSS)were done in all patients.On 18 FDG PET/CT images,the SUVmax values of lesions and the SUVmax ratio of lesion tissue to normal lung tissue were calculated.Results ① 8 patients with EAS included 2 cases of carciniod,4 cases of atypical carciniod,and 2 cases of small cell lung cancer.The ACTH levels in inferior petrosal sinus and peripheral veins of 8 patients had no difference.②The chest CT showed there were pulmonary nodules in 6 cases (75%),among them 2 cases were atypical lesions.5 cases of pituitary adenomas were found by MRI (25%),and OCT imaging was positive in 2 cases (25%).③The 18 FDG PET/CT showed nodular,mass like or patch samples with high metabolic activity in 8 cases (100%)of pulmonary lesions.The SUVmax of tumor was 0.72 to 14.05 (3.67±4.68),and the ratio of SUVmax of lesion tissue to normal lung tissue was 1.69 to 27.54 (8.14 ± 9.63).18 FDG hypermetabolism was found in 8 cases of bilateral adrenal hyperplasia,while 4 cases showed pituitary tumor.Conclusion Lung cancer is a common source of EAS,especially carcinoid.18 FDG PET may show lower glucose metabolism.18 FDG PET/CT should be used as an assisted method to diagnose EAS.