Objective To summarize the clinical histopatholngical characteristics of extranodal na-sal-type natural killer cell / T cell lymphoma. Methods 21 cases of nasal-type extranodal natural killer cell / T cell lymphoma were studied by retrospective analysis on its connection with their clinical manifesta-tions and histopathological features. Immunohietochemical SP method was used to detect the expression of immunophenotype, virus( EBV), and etc, in 21 cases. Results Capillaries had varied degrees hyperplasi-a in all cases under the microscope. Tumor cells showed definite devastating infiltration around the blood vessels, its infiltrating representation was found below intima and among vessel wall, and multiple mixed in-flammatory cells were found in it as well. Squamous epithelial pseudotumor-like proliferating can be seen in 1 case. All tumor cells'immnnophenotype were T-cell differentiation antigen CD45RO( + ), T-cell related antigen CD56 (+), T-cell particle-associated antigen TIA-1 (+), EBV (+). Conclusion Nasal-type extranodal natural killer cell / T cell lymphoma has characteristic clinical expression and histopathological changes. Accurate diagnosis can be obtained on the basis of its typical clinical expression, pathomorphology changes, immunophenotype and EBV( + ) in situ hybridization.

Objective:To investigate the use of psychological testing in hospital and its potential existent ethical issues.Methods:Eleven psychometricians from 6 specialized and 5 general hospitals accepted a semi-structural interview.With (10.8 ± 8.8) years of experiences on average in this field,they tested 2 to 30 patients each day.Content analysis was used to investigate the psychometricians' qualification,usage of tests,informed consent,scoring,explanation and preservation.Results:Normally,the number of psychometricians in one hospital varied from 1 to 4.Out of 11 interviewees,2 were unqualified.Three of the interviewees pointed out there were non-standard circumstances when some doctors choosing the tests.Six of them thought that the frequently used tests' norms were obsolete.Eight interviewees considered that comparatively low psychometric fee influenced their devotion of explaining the results.Conclusion:In hospital,it's necessary to strength the ethical awareness of decision-makers and executors in psychological testing.

Objective:To learn the cognition and attitudes of psychometric ethics of graduate students whose major was clinical psychology or counseling psychology,and to investigate whether ethics training could influence their cognition and attitude.Methods:Researchers distributed the questionnaire online regarding cognition and attitudes of psychometric ethics among clinical and counseling psychology graduate students.Seventy-six feedbacks were collected (4 students were learning ethics courses,27 students had learned ethics courses,45 students hadnt learned ethics courses).The questionnaire included the Psychometric Cognition Questionnaire (PCQ),Situational Judgement Questionnaire (SJQ) and Psychometric Attitude Questionnaire (PAQ).The first two sets of questionnaires reflected ethics knowledge.The last one showed ethics attitudes and behavioral tendencies.Results:The correct rates in participants who had learned or were learning ethics were 76.5％ and 75.1％ at the first and second set of questionnaires,while were 73.9％ and 74.2％ in other participants.The correct rates of three major clauses in PCQ were 90.3％,67.7％ and 74.2％,significantly higher than participants who never learned ethics,whose correct rates were 88.9％,66.7％,and 44.4％ (Ps ＜ 0.05).There were no significant differences in SJQ between those who had learned or was learning ethics and those who had never learned ethics (Ps ＞0.05).Participants who had learned or were leaning ethics scored in sum in PAQ that had no significant differences with those who had never learned ethics(Ps ＞ 0.05).Conclusion:Clinical and counseling psychology graduate students master considerable level of knowledge on ethics and attitude.Ethics training is essential for acquiring psychometric ethics.

Objective To investigate the clinical symptoms and MRI imaging findings in patients with autoim-mune encephalitis and to improve clinician's understanding about the clinical and imaging characteristics of autoim-mune encephalitis. Methods We analyzed the clinical features and MRI findings of 33 patients with autoimmune en-cephalitis in our department. Results Of these 33 patients, 27 (81.8%) had psychiatric symptoms, 26 (78.8%) had seizure, 18 (54.5%) had involuntary movement, 11 (33.3%) had fever and 9 (27.3%) patients presented with cen-tral hypoventilation, the present of involuntary movement and fever was lower in group LE than in group NMDA. A total of 10 patients had positive MRI finding. Of these 10 patients, 8 had brain parenchyma lesions, 3 had meningeal involvement. The most likely affected parenchymal lesions are occipital lobe, bilateral hippocampus, frontal lobe, pari-etal lobe, temporal lobe, thalamus and cerebellum. Conclusion Psychiatric symptoms and seizure are the most com-mon neurological symptoms of autoimmune encephalitis. MRI may show abnormal signals in the limbic system. FLAIR is the most sensitive MR imaging sequence for detection of autoimmune encephalitis lesions.

Objective: To explore the characteristics of Auditory Brainstem Response (ABR) in children with ASD, and analyze their relation with the core symptoms of ASD. Methods: Ninty children aged 2-6 with ASD were recruited from Harbin in this study. The data of ABR was collected by using BAEP, and the association among children’s absolute latency and interpeak latency of ABR, core symptoms of ASD children’s behavior and clinical manifestation was analyzed. Results: Compared with the normal average value, children with ASD had longer the absolute latency of wave Ⅰ,Ⅲ,Ⅴ in bilateral ears, which were (1.51±0.20)(3.83±0.34)(5.63±0.23)ms, (1.54±0.16) (3.78±0.23) (5.63±0.22)ms, respectively(P<0.05). Some children’s interpeak latency of Ⅰ-Ⅲ, Ⅲ-Ⅴ, Ⅰ-Ⅴ were longer than normal values. Children younger than 3 years old showed prolonged peak intervals of Ⅰ-Ⅲ and Ⅰ-Ⅴ than children in 3-7 years old. The study has also showed that there was positive correlation between the absolute latency of waveⅠin left ear and the social function defect(r=0.45, P<0.05); there was positive correlation between the latency of wave Ⅴin right ear or the latency of waveⅠin left ear or the Ⅰ-Ⅲ peakinterval and nonverbal communication ability dysfunction(r=0.35, 0.39, 0.34, P<0.05); there was positive correlation between the Ⅰ-Ⅲ peak interval and the repeated stereotyped symptoms(r=0.39, 0.35, P<0.05). Conclusion Children with ASD have abnormal auditory behavior. The absolute latency and interpeak latency of ABR is correlated to some parts of core symptoms of ASD.