Sebaceous neoplasms are rare adnexal tumors that can present a challenge to clinicians. Only four cases of sebaceous carcinoma with sebaceoma have been reported in the literature. Herein, we describe the case of a sebaceous carcinoma originating from a sebaceoma in a solitary nodule of the posterior neck. Immunohistochemically, the tumor cells were strongly positive for epithelial membrane antigen and p53. It is possible that adnexal carcinomas may arise from malignant transformation of their benign counterparts as well as de novo. Malignant transformation was likely in this case because the lesion was composed of distinct benign and malignant components, and the benign component showed the typical histopathological features of sebaceoma. This case underscores the fact that partial and superficial biopsies sometimes may not provide the correct diagnosis. If a surgeon suspects malignancy based on a clinical examination, then it is mandatory to perform a deep biopsy.

Sebaceous neoplasms are rare adnexal tumors that can present a challenge to clinicians. Only four cases of sebaceous carcinoma with sebaceoma have been reported in the literature. Herein, we describe the case of a sebaceous carcinoma originating from a sebaceoma in a solitary nodule of the posterior neck. Immunohistochemically, the tumor cells were strongly positive for epithelial membrane antigen and p53. It is possible that adnexal carcinomas may arise from malignant transformation of their benign counterparts as well as de novo. Malignant transformation was likely in this case because the lesion was composed of distinct benign and malignant components, and the benign component showed the typical histopathological features of sebaceoma. This case underscores the fact that partial and superficial biopsies sometimes may not provide the correct diagnosis. If a surgeon suspects malignancy based on a clinical examination, then it is mandatory to perform a deep biopsy.

OBJECTIVE: Perinatal hypoxic-ischemic encephalopathy (HIE) and prolonged febrile seizures (pFS) are common neurologic problems that occur during childhood. However, there is insufficient evidence from experimental studies to conclude that pFS directly induces hippocampal injury. We studied cognitive function and histological changes in a rat model and investigated which among pFS, HIE, or a dual pathologic effect is most detrimental to the health of children. METHODS: A rat model of HIE at postnatal day (PD) 7 and a pFS model at PD10 were used. Behavioral and cognitive functions were investigated by means of weekly open field tests from postnatal week (PW) 3 to PW7, and by daily testing with the Morris water maze test at PW8. Pathological changes in the hippocampus were observed in the control, pFS, HIE, and HIE+pFS groups at PW9. RESULTS: The HIE priming group showed a seizure-prone state. The Morris water maze test revealed a decline in cognitive function in the HIE and HIE+pFS groups compared with the pFS and control groups. Additionally, the HIE and HIE+pFS groups showed significant hippocampal neuronal damage, astrogliosis, and volume loss, after maturation. The pFS alone induced minimal hippocampal neuronal damage without astrogliosis or volume loss. CONCLUSION: Our findings suggest that pFS alone causes no considerable memory or behavioral impairment, or cellular change. In contrast, HIE results in lasting memory impairment and neuronal damage, gliosis, and tissue loss. These findings may contribute to the understanding of the developing brain concerning conditions caused by HIE or pFS.
Animals ; Brain Injuries* ; Brain* ; Child ; Epilepsy ; Gliosis ; Hippocampus ; Humans ; Hypoxia-Ischemia, Brain ; Memory ; Models, Animal ; Neurons ; Rats* ; Seizures, Febrile*

OBJECTIVES: The purpose of this study was to evaluate the psychometric properties of the Korean version of the Richmond Compulsive Buying Scale (RCB-K). METHODS: Participants (n=598) included patients recruited through an online panel survey. For the semantic adaptation step, the scale was translated into Korean and then back-translated to English by one psychologist, one public health professional, one psychiatrist who could speak both Korean and English, and one professional translator, without communication between those involved. A confirmatory factor analysis was performed to test whether the factor structure of the RCB-K was consistent with the English version. Convergent validity was assessed by correlating the RCB-K scores with those of other scales (i.e., O'Guinn & Faber's Compulsive Buying Scale, Problem Gambling Inventory). RESULTS: The factor structure of the RCB-K was consistent with the two-factor structure established for the original RCB. Cronbach's α was high (0.906), indicating that the reliabilities of the items in each subscale were satisfactory. The RCB-K score was significantly correlated with those for the O'Guinn & Faber's Compulsive Buying Scale (r=0.7) and the Problem Gambling Inventory (r=0.422). CONCLUSION: The results of the present study indicate that the RCB-K is an effective and valid scale for evaluating the severity of compulsive buying. The findings suggest that the RCB-K is a promising assessment tool for use in the treatment and study of online compulsive buying behavior.
Gambling ; Humans ; Psychiatry ; Psychology ; Psychometrics ; Public Health ; Reproducibility of Results* ; Semantics ; Weights and Measures

OBJECTIVES: A saccular cyst is defined as a dilated saccule of the larynx, filled with mucus, and is located between the false vocal cords and the thyroid cartilage. Although this uncommon laryngeal condition is benign in nature, it could lead to dyspnea, stridor, and airway obstruction, depending on its size and location. Furthermore, some saccular cysts have been associated with laryngeal carcinoma. This study aimed to characterize this rather uncommon laryngeal condition to aid in determining the proper management of this pathology. METHODS: Medical records were retrospectively reviewed of all patients with saccular cysts diagnosed and treated between 2006 and 2017 at a tertiary otolaryngologic care center. RESULTS: Seven patients with saccular cysts were identified (male:female=2:5; mean age, 34.1 years); two were pediatric patients. Surgical intervention was performed in all patients by laryngo-microsurgery using CO2 laser. There was no recurrence after the initial surgical treatment. CONCLUSION: Saccular cysts can be managed endoscopically using CO2 laser, without requiring an external approach. Therefore, an endoscopic approach should be actively considered for an optimal treatment outcome.
Airway Obstruction ; Dyspnea ; Humans ; Larynx ; Lasers, Gas ; Medical Records ; Mucus ; Pathology ; Recurrence ; Respiratory Sounds ; Retrospective Studies ; Saccule and Utricle ; Thyroid Cartilage ; Treatment Outcome ; Vocal Cords

Purpose: To investigate the tomographic structural changes in the retinal layers after internal limiting membrane (ILM) peeling for idiopathic epiretinal membrane (ERM). Methods: Sixty-nine eyes treated with vitrectomy and ILM peeling for idiopathic ERM were analyzed. Parafoveal retinal thickness was measured at baseline and 6 months after surgery. Results: Total retinal thickness decreased significantly in the nasal and temporal subfields after surgery (p < 0.001), whereas the inner nuclear layer and outer nuclear layer showed nasal thickening (all, p < 0.001). The postoperative temporalasal subfield thickness ratio of each layer was significantly lower than that of fellow eyes. Eyes with larger ILM peeling showed a significantly lower temporalasal subfield thickness ratio (p = 0.033) than those with smaller sizes. Conclusions The retinal thickness of each layer showed anatomical changes from ILM peeling and ERM removal. Nasal parafoveal thickening and temporal thinning occurred in the inner retinal architecture, which might be affected by ILM peeling size.

Background: Muscle strength has been suggested as a cardiovascular marker. The aim of this study was to examine the associations between hand grip strength and biomarkers of cardiovascular disease in the Korean population. Methods: A total of 9,083 participants aged 20–80 years from Korea National Health and Nutrition Examination Survey 2015–2016 were investigated. Results: Among men, both relative and dominant hand grip strength showed a positive association with diastolic blood pressure in those aged 65–80 years (95% confidence interval, P-value of dominant and relative hand grip strength: β=0.06, 0.01; P<0.05). Among women, relative and dominant hand grip strength showed a positive relationship to diastolic blood pressure in those aged 20–64 years (β=0.06, 0.01; P<0.001). Body mass index was positively associated with dominant hand grip strength in younger women (β=0.18, P<0.05), whereas it was positively associated with relative hand grip strength in all sex and age groups. High-sensitivity C-reactive protein showed a negative association with relative and dominant hand grip strength in all women, although the same association was observed only in younger men. Diabetes was inversely related to hand grip strength in younger women and men. Conclusion Increased hand grip strength may be associated with lower C-reactive protein in women and with less risk of diabetes in the Korean adult population. Further prospective studies are needed for the determination of causality between cardiometabolic markers and hand grip strength.

OBJECTIVES: This study was carried out to identify seasonal variations of urinary concentrations of N-methylformamide (NMF) among workers employed at a synthetic leather factory. METHODS: Study subjects consisted of 16 male and 6 female workers who were involved in the direct treatment of dimethylformamide (DMF) in a synthetic leather factory. By using health examination data and the results of air measurements and biologic monitoring conducted in February and July, 2001, we identified seasonal variations of the DMF concentrations in the air and NMF concentrations in urine. RESULTS: 1) In winter and summer, average temperatures at the working sites were 3.2 degrees C and 26.5 degrees C, respectively and average humidities were 35.4 % and 84.5 %, respectively. 2) Airborne DMF concentrations were not significantly different between summer (13.78 ppm) and winter (11.55 ppm). 3) NMF concentrations in urine were found to be significantly higher in summer (96.09 mg/g creatinine) than in winter (31.23 mg/g creatinine) (p<0.001). CONCLUSIONS: The seasonal difference in the urinary excretion values of NMF may be due to increased dermal absorption of DMF with the higher ambient temperature and humidity in summer and the increased area of exposed skin.
Absorption ; Dimethylformamide ; Environmental Monitoring ; Female ; Humans ; Humidity ; Male ; Seasons* ; Skin

BACKGROUND: Left ventricular (LV) end-systolic pressure volume relation (ESPVR) is considered as a load independent contractile index. However, its application in human beings has been limited by the difficulty in the accurate real time measurement of the LV volume changes. With introduction of the echocardiographic automatated edge detection method, on-line generation of multiple LV pressure volume-loops has become possible to assess ESPVR. This study was performed to investigate the correlation of the degree of myocardial damages with myocardial contractility and contractile reserve assessed by ESPVR as a surrogate of contractility index. METHODS: Studies were attempted in ten patients with idiopathic dilated cardiomyopathy. Baseline two-dimensional and Doppler echocardiography, cardiac catheterization for hemodynamic assessment and endomyocardial biopsy were performed. Generation of multiple LV pressure-volume loops during occlusion and release of the inferior vena cava by a balloon catheter was performed using the volume signals from the echocardiographic automatated edge detection method and the pressure signals from a 5F fluid-filled lumen catheter. ESPVR was measured at the baseline and after 3 minutes of dobutamin infusion (10 microgram/Kg/min). RESULTS: No correlation was observed between the degree of myocyte hypertrophy change or interstitial fibrosis and the two-dimensional echocardiographic or hemodynamic data. However, restrictive LV filling pattern was more common in the patients with severe degree of myocyte hypertrophy change. Myocardial contractility and contractile reserve were also significantly reduced in this patient group. The degree of interstitial fibrosis did not affect myocardial contractility or contractile reserve in this particular patient group. CONCLUSION: Assessment of ESPVR using the echocardiographic automatated edge detection method was feasible in the patients with idiopathic dilated cardiomyopathy. The degree of myocardial hypertrophy change was prominent in the patients with reduced contractility and contractile reserve.
Biopsy ; Cardiac Catheterization ; Cardiac Catheters ; Cardiomyopathy, Dilated* ; Catheters ; Echocardiography ; Echocardiography, Doppler ; Fibrosis ; Hemodynamics ; Humans ; Hypertrophy ; Muscle Cells ; Vena Cava, Inferior

OBJECTS: Residents are exposed to various hazards and harassed by sleep deficiency due to overwork. This study was performed to outline the health condition of residents and develop the ways of improving it. METHODS: A questionnaire was distributed to 881 army doctors who enrolled at the Korea Third Military Academy and The Armed Force Health Service School in 2000 with the exception of medical doctors who joined the armed service without going through intern and resident periods , dental and oriental medical doctors. 784 (89.0%) of the 881 questionnaires were returned of which 704 cases (79.9%). This should actually be 89.0% were regarded for analyses as being reliable data. RESULTS: More than 20% of residents were exposed to radiation, laser, disinfectants, anesthetic gas, and anticancer drugs during their training periods with preventive measures for each of these hazards taken in about 10% of the cases of the lesser hazards but in about 35% for the hazards from radiation and laser. 91.1% of residents had experience of needlestick injuries during their training periods with over 36.3% being exposed to patients with infection during that time. The cases contracting HBV and HCV diseases due to pricking are 2.3 and 0.6% respectively. The average number of night duties per month during a one-year resident's period was about 19. The average sleeping time on duty during a one-year residents was less than 4 hours .28.4% of respondents were not satisfied with their occupation, 96.5% felt tired from overwork and 69.5% wanted to change their occupation to another that would pay the same salary. CONCLUSION: Residents are exposed to harmful physical , chemical and biological factors, but the preventive care seldom undertaken. In addition, their overwork brings about lack of sleep which causes them problems when giving medical treatment to patients during their training periods. Despite the resident's interest in an occupation as a doctor, many intend to select other occupations if they can receive the same salary. According to the above results, preventative systems and measures should be prepared with environmental improvements for residents, and proper rewards for their overwork should be accomplished.
Arm ; Biological Factors ; Data Collection ; Disinfectants ; Health Services ; Humans ; Korea ; Military Personnel ; Needlestick Injuries ; Occupations ; Questionnaires ; Reward ; Salaries and Fringe Benefits