We describe a case of fine needle aspiration cytology of metastatic nasopharyngeal carcinoma in the lymph node of the neck presenting a predominantly spindle cell pattern. A 36 year-old male patient complained of dysesthesia on the right face and a palpable neck mass. Fine needle aspiration was done on the neck mass. Tumor cells were present in syncytial groups or singly with mainly spindle shaped nuclei, vesicular chromatin, thin and regular nuclear membrane, occasional prominent nucleoli and a few foci of cellular cohesiveness. The cytoplasm was scant and pale with ill-defined borders. Mature lymphocytes were present in the background of aspirates and within the tumor cell clusters. Histologically, the tumor of nasopharynx showed several areas of spindle cell pattern. Because the tumor cells showed a predominantly spindle shape with vesicular nuclear chromatin, the differential diagnosis of spindle cell sarcoma or granuloma of epithelioid cells were considered, but the characteristic morphology of the nuclei with vesicular chromatin and prominent nucleoli, and cellular cohesiveness were important in making the diagnosis of nasopharyngeal carcinoma. The possibility of metastatic carcinoma should always be considered in fine needle aspiration cytology of the lymph node in the neck because the incidence of metastatic carcinoma, particularly of the nasopharyngeal carcinoma in the lymph nodes of the neck is relatively high.
Child ; Male ; Female ; Humans ; Diagnosis, Differential ; Incidence ; Neoplasm Metastasis

BACKGROUND: Quinidine appeared to increase serum digoxin levels when given with quinidine. Therefore elevated serum digoxin concentrations and clinical toxicity have been reported in patient receiving quinidine. Currently, Bayesian method which estimates the most probable parameters of the drug for each patient from population parameters data is useful approach for adjusting digoxin dosage. To increase the accuracy of Bayesian method, it is desirable to use population parameters of Korean. Therefore we evaluated the effect of quinidine on digoxin clearance in Korea. METHOD: Patient's records from 19 adult cardiac disease without CHF having normal renal and liver function from Seoul National University of Hospital respectively wre evaluated. Digoxin pharmacokinetic parameters, CL and Vd, were obtained from serum concentration of digoxin of single and combined therapy at each steady-state by using bayesian method. RESULTS: This study show that quinidine reduced the total body clearance of digoxin from 2.39+/-0.17 to 1.51+/-0.08ml/min/kg(p<0.05) and reduced the digoxin volume of distribution from 8.57+/-0.29 to 4.98+/-0.19L/kg(p<0.05). This results show that digoxin dosage reduced to 40-50% in Korean, if quinidine therapy is initiated.
Adult ; Bayes Theorem ; Digoxin* ; Drug Interactions ; Heart Diseases ; Humans ; Korea ; Liver ; Pharmacokinetics ; Quinidine* ; Seoul

OBJECTIVES: Sedentary behavior has gradually increased and has become a public health problem. Therefore, this study investigated trends in weekday leisure-time sedentary behaviors, as well as characteristic socio-demographic and lifestyle correlates in Korean adults. METHODS: We analyzed data from 914,946 adults aged ≥19 years who participated in the Korea Community Health Survey (2011, 2013, 2015, and 2017). Leisure-time sedentary behavior was categorized as a binary variable (<4 and ≥4 hr/day). Multivariable regression analysis was used to model the prevalence of sedentary behavior and estimate odds ratios. RESULTS: The prevalence of leisure-time sedentary behavior decreased from 15.2% to 14.4% in men and from 16.6% to 16.0% in women between 2011 and 2017, respectively. However, a significant increase was observed in subjects with an education lower than high school in both genders (β coefficient=0.12 for men and 0.08 for women, p for trend <0.001). Women in the lowest household income level (β coefficient=0.08, p for trend=0.001) and with poor subjective health status (β coefficient=0.05, p for trend=0.013) showed an increasing trend. Other factors associated with sedentary behavior were age, education level, body mass index, household income, walking activity, perceived stress level, and subjective health status in both genders. CONCLUSIONS Identifying the secular trends and correlates of sedentary behavior by gender and associated factors will provide empirical evidence for developing public health campaigns and promotion programs to reduce sedentary behavior in Koreans.

Primary splenic tumors are rare and mainly found incidentally on radiologic studies. Among them, sclerosing angiomatoid nodular transformation (SANT) of the spleen is a new entity defined as a benign pathologic lesion. Most SANTs have no clinical symptoms and are occasionally accompanied by other splenic diseases such as malignancies. So, the exact diagnosis of the nature of the splenic tumor is mandatory for further treatment. But, preoperative diagnosis is not easy since it is difficult to obtain the tissue from the spleen for pathological study. Recently, laparoscopic splenectomy has become the more standard procedure for the spleen for diagnosis and treatment. Here, we report a rare case of SANT diagnosed following laparoscopic splenectomy.
Spleen ; Splenectomy ; Splenic Diseases

PURPOSE: This study was done to identify the state of internet addiction and to investigate the relationships among internet addiction, depression and suicidal ideation in adolescents. METHOD: Participants were 1,670 high school students in an urban city. The Internet Addiction Scale was used to measure internet addiction, the DISC-MDD-SQ was used to measure depression, and the Suicidal Ideation Questionnaire-JR was used to measure suicidal ideation. RESULT: 38.1% of participants were perceived to be in the early stages of internet addiction and 1.5% reported heavy addiction. Overall the internet addiction scale score was 37.57(+/-12.52). The differences of internet addiction in sample characteristics were found to be significant in rank in class. The differences in DISC-MDD-SQ and IAS scores among the states of internet addiction were statistically significant. The level of internet addiction correlated positively to the level of depression and suicidal ideation. CONCLUSION: Based upon these findings, there were significant positive correlations among Internet addiction, depression, and suicidal ideation in adolescents. As schools are often the first line for the identification of potential life-threatening behaviors, nurses, especially school-based health professionals, need to be cognizant of measures and procedures for the assessment of Internet addiction, depression, and suicidal ideation.
Adolescent ; *Adolescent Psychology ; Behavior, Addictive/diagnosis/*psychology ; Depression/diagnosis/*psychology ; Female ; Humans ; *Internet ; Male ; Suicide/*psychology

Pneumocystis carinii causes serious pulmonary infection in immunosuppressed patients. This study was undertaken to observe the cytoskeletal proteins of P. carinii by immuno-electron microscopy. P. carinii infection was experimentally induced by immunosuppression of Sprague-Dawley rats for seven weeks, and their lungs were used for the observations of this study. The gold particles localized actin, tropomyosin, and tubulin. The actin was irregularly scattered in the cytoplasm of the trophic forms but was much more concentrated in the inner space of the cell wall of the cystic forms called the inner electron-lucent layer. No significant amount of tropomyosin was observed in either trophic forms or cystic forms. The tubulin was distributed along the peripheral cytoplasm and filopodia of both the trophic and cystic forms rather than in the inner side of the cytoplasm. Particularly, in the cystic forms, the amount of tubulin was increased and located mainly in the inner electron-lucent layer of the cell wall where the actin was concentrated as well. The results of this study showed that the cell wall of P. carinii cystic forms is a structure whose inner side is rich in actin and tubulin. The location of the actin and tubulin in P. carinii suggests that the main role of these proteins is an involvement in the protection of cystic forms from the outside environment by maintaining rigidity of the cystic forms.
Actins/analysis ; Animals ; Cytoskeletal Proteins/*analysis ; Fungal Proteins/*analysis ; Histocytochemistry ; Microscopy, Immunoelectron ; Pneumocystis/*chemistry/cytology ; Rats ; Rats, Wistar ; Support, Non-U.S. Gov't ; Tropomyosin/analysis ; Tubulin/analysis

The antihypertensive effect of clonidine was evaluated in 129 patients with essential hypertension of mild to moderate severity with a dosage of one tablet(0.075mg) a day for 71 patients of Group I and two tablets a day for 58 patients of Group II. The results were as follows : 1) Of 71 patients of Group I, 34 patients(47.9%)showed good antihypertensive effect(greater than 15 mmHg drop in mean diastolic pressure) and 11 patients(15.5%) showed fair effect(10-14 mmHg drop in mean diastolic pressure). 2) Of 58 patients of Group II, 39 patients(67.2%) showed good effect and 7 patients(12.1%) showed fair effect. 3) The side effect observed was transient and tolerable dry mouth, which developed in 5.6% of Group I patients and 13.6% of Group II patients.
Clonidine* ; Humans ; Hypertension ; Mouth ; Tablets

No abstract available.
Cystitis* ; Lymphoma, Non-Hodgkin* ; Precursor Cell Lymphoblastic Leukemia-Lymphoma*

Purpose: Genu valgum in Legg-Calve-Perthes disease (LCPD) is not a known complication. We investigated whether this valgus tendency is a complication of femoral varus osteotomy (FVO) or the sequela of the disease process itself, and what are the related factors. Materials and Methods: 35 patients treated by FVO and 38 by abduction orthosis (AO) were selected for this study. Only those patients with unilateral involvement, fragmentation stage, Catterall Group III or IV, and who were followed-up to full skeletal maturity were included in the study. We measured mechanical axis deviation percentage and hip-knee-ankle angle for femorotibial alignment, and mechanical lateral distal femoral angle and medial proximal tibial angle (mMPTA) for knee orientation on teleoroentgenograms and compared the affected and normal limbs. Results: All measurements, excluding the mMPTA, demonstrated a tendency of relative genu valgum versus the opposite normal limbs. This tendency was observed in both groups. There was no statistically significant difference between the two groups. Conclusion: Genu valgum occurred in 66% to 70% of the LCPD patients. Four factors were found to be significantly correlated with valgus shift: increased medial bowing of the femoral neck, decreased acetabulum head index, coxa magna, and limb shortening. Multivariate regression analysis identified limb shortening as the factor most responsible for valgus shift.
Acetabulum ; Axis, Cervical Vertebra ; Extremities* ; Femur Neck ; Genu Valgum* ; Head ; Hip ; Humans ; Knee ; Legg-Calve-Perthes Disease* ; Orthotic Devices ; Osteotomy

OBJECTIVES: Patients with chronic renal failure have increased hemorrhagic tendency due to an uremic platelet dysfunction and complications from anticoagulants used in hemodialysis. They are also prone to have thrombotic complications in the cerebral vessels, coronary arteries and A-V fistula, due to hypercoagulability from changes in various factors. Recently, deficiencies in plasma protein C and S, which are physiological anticoagulants, have been reported to cause thrombosis. In chronic renal failure, plasma protein C and S activities are known to be decreased. METHODS: In the present study, activities and antigen concentrations of plasma protein C and S, as well as AT-III activities were investigated in three groups; the normal control group, the predialysis group of chronic renal failure patients treated conservatively, and the hemodialysis group. The findings were analyzed for their relationship to hypercoagulability. RESULTS: 1) The activities of plasma protein C, S and antithrombin-III were significantly lower in the predialysis chronic renal failure group as compared to the control. Antithrombin-III concentrations in the hemodialysis group assayed immediately prior to dialysis were significantly lower than those of the control group. But, protein C antigen concentrations in the hemodialysis group assayed immediately prior to dialysis were significantly higher than those of the control group. There was no significant difference between these groups in plasma protein C activities, and plasma protein S activities and antigen concentrations. 2) In the hemodialysis group, antithrombin-III activities, antigen concentration and activities of plasma protein C were significantly higher than after dialysis as compared to those before the dialysis. 3) There were no significant difference in plasma protein C, S and antithrombin-III activities and plasma protein C and S antigen concentrations in hemodialysis patients between with and without thrombosis at arterio-venous fistula site. However, plasma protein C and antithrombin-III activities were significantly lower in those with thrombosis as compared to those of the normal control group. There were no significant difference in plasma protein C and S activities and antigen concentrations in those without thrombosis as compared to those of the normal control group. 4) There were no significant diffrences in plasma protein C, protein S and antithrombin-III activities and antigen concentrations in dialysis patients with and without recombinant erythropoietin treatment. 5) There were no significant correlations between serum creatinine and creatinine clearance, and plasma antithrombin-III, protein C and protein S activities and antigen concentrations in predialysis group. CONCLUSION: These results suggest that the decrease in plasma antithrombin-III, protein C and S could be the factors causing hypercoagulability in chronic renal failure patients, and the decreased activities of these factors may return to normal by dialysis. In the hemodialysis group, there were no significant diffrences in plasma protein C and S and antithrombin-III activities and antigen concentrations between the group which showed clinical thrombosis and the group which did not. However, in those who had thrombosis, plasma protein C and antithrombin-III activities are significantly lower than the control group. Administration of recombinant human erythropoietin does not appear to affect the activities of plasma protein C and S and antithrombin-III. In predialysis chronic renal failure patients, there was no significant relationship between renal function and plasma protein C and S and antithrombin-III.
Anticoagulants ; Arteries ; Blood Platelets ; Coronary Vessels ; Creatinine ; Dialysis ; Erythropoietin ; Fistula ; Humans ; Kidney Failure, Chronic* ; Plasma ; Protein C* ; Protein S ; Renal Dialysis ; Thrombophilia ; Thrombosis