Apocrine hidrocystoma is a benign tumor arising from apocrine sweat gland. It presents as a solitary translucent nodule, usually on the face, head, and neck. However it is extremely rare for the apocrine hidrocystoma to arise on the extremities, and no case of apocrine hidrocystoma on lower extremity has been reported in Korean dermatologic literature. Herein, we report a case of 63-year-old male apocrine hidrocystoma that developed in ankle area with a review of the literature.
Ankle* ; Extremities ; Head ; Hidrocystoma* ; Humans ; Lower Extremity ; Male ; Middle Aged ; Neck ; Sweat Glands

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging and potentially life-threatening tick-borne virus disease in Korea. It can be presented with hemophagocytic lymphohistiocytosis (HLH) as severe complicated cases. Here, we report two cases of SFTS associated HLH patients fully recovered with steroids and conservative treatment, even though they had high risk factors of poor prognosis.
Fever* ; Humans ; Korea ; Lymphohistiocytosis, Hemophagocytic* ; Prognosis ; Risk Factors ; Steroids* ; Thrombocytopenia* ; Virus Diseases

This study was aimed to report a case of serous retinal detachment following laser peripheral iridotomy (LPI) for the treatment of angle closure secondary to posterior scleritis. A 55-year-old man with bilateral ocular pain, redness, and headache was referred to Keimyung University Dongsan Medical Center. At the initial examination, his visual acuity was 1.0 in the both eyes. The intraocular pressure (IOP) was 25 mmHg in the right eye and 28 mmHg in the left eye. Slit lamp examination showed a shallow anterior chamber, which was found to be Shaffer grade I by gonioscopy. There were no specific findings in the fundus, except a slightly edematous disc margin in both eyes. LPI was performed on both eyes. Fourth day after LPI, the patient complained of a central scotoma and visual disturbance of the left eye, in which the visual acuity had decreased to 0.06. The optical coherence tomography showed serous retinal detachment at the posterior pole. Fluorescein angiography revealed a focal leakage in the superotemporal area, as well as multiple hyperfluorescence lesions. Posterior scleritis of the left eye was diagnosed. Systemic steroid therapy was initiated and the area with the leakage was treated by focal laser photocoagulation. Two weeks later, the serous retinal detachment of the left eye resolved and visual acuity improved to 0.63. Laser peripheral iridotomy can exacerbate serous retinal detachment in patients with posterior scleritis that presented as acute angle closure.
Anterior Chamber ; Fluorescein Angiography ; Gonioscopy ; Headache ; Humans ; Intraocular Pressure ; Light Coagulation ; Middle Aged ; Retinal Detachment* ; Retinaldehyde* ; Scleritis* ; Scotoma ; Slit Lamp ; Tomography, Optical Coherence ; Visual Acuity

Tracheobronchopathia osteochondroplastica (TO) is a rare dysplastic disease of the trachea characterized by cartilaginous or bony nodules in the tracheobronchial lumen. Rigid video-stylet is an intubating device that provides favorable conditions even in the difficult cases. In this report, we describe a successful airway management using the rigid video-stylet in a 62-year-old man with unanticipated difficult intubation later diagnosed for TO. He was planned for elective percutaneous nephrolithotomy under general anesthesia. He was healthy without any airway symptoms. With the rigid video-stylet, we not only performed successful tracheal intubation but also examined endotracheal lumen simultaneously. Using the rigid video-stylet, we noticed multiple whitish projecting nodules in the trachea, which were the typical findings for TO.
Airway Management ; Anesthesia, General ; Humans ; Intubation* ; Middle Aged ; Nephrostomy, Percutaneous ; Trachea

During an educational dissection, accessory tendon of the extensor pollicis brevis muscle was found on the left side in a Korean cadaver. The abductor pollicis longus, extensor pollicis brevis, and extensor pollicis longus muscles showed normal morphology and course: however, narrow muscle belly originated between the extensor pollicis brevis and extensor pollicis longus muscles. It crossed the anatomical snuff box and then inserted on the base of the distal phalanx of the thumb. The author describes this previously novel case report and discusses the clinical implications of such a variant.
Cadaver ; Muscles ; Tendons ; Thumb ; Tobacco, Smokeless*

University life can be stressful for even the most satisfied students. Especially medical school students have higher levels of stress. To manage their stress level and social connection, they are using SNS. The purpose of this study was to investigate the effect of SNS on medical students by analysis of SNS use pattern of medical students. In the analysis of the first grade of Medicine, 51 students (58.6%) posted on Facebook in the past year and posted a total of 1,452 articles (average: 28.5). We analyzed the content of the posts and found that most of them were celebrating a birthday (50%) or confirming their regards (18%). Next, there were other people's posts (10%) and travel posts (6%). Besides, there were profile photo upload (3%), school life (3%), romance (2%) or family (1%). Female students (16 times / 17 students) changed the profile pictures more frequently than male students (18 times / 34 students) (p = 0.003). There was no statistical significance in all items except for the change of profile picture according to sex. On the other hand, the analysis of the content of the share showed that most of the contents shared about humor (42%), food (15%) and music (14%). Most of the medical students used SNS primarily for social activities, not for educational purposes. Based on this analysis, there should be more research on how SNS can help medical students during medical education.
Education, Medical ; Female ; Hand ; Humans ; Male ; Music ; Schools, Medical ; Students, Medical*

Grip strength is used in the various field to assess the disorder of upper limb. Normative data on the grip strength of population is needed to assess decreased grip strength. In this study, we tried to make a estimating model considering age and anthropometry investigation data, by analyzing 2014-2015 Korean National Health and Nutrition Examination Survey data. The subjects of this study were 10,430 participants who measured grip strength of both hands, have no missing data on anthropometry data and survey. Analysis showed that the grip strength had a curve-shaped correlation which could best be explained by the cubic expression of age, and linear correlation between height, weight and waist circumference. After the stratification of the gender, a prediction formula with age, height, and body weight as independent variables for dominant hand and non-dominant hand grip strength was presented. In addition, the distribution of estimated value to measured value ratio among subjects was suggested, which can be used to assess the abnormal value of grip strength. The distribution of non-dominant hand grip strength to dominant hand grip strength was also suggested, which can be used to determine decreased unilateral grip strength. Several studies have suggested normative value for grip strength by gender and age of Koreans, but there are no consideration for adjusting heightand weight. In this study, the model was developed to calculate the predicted grip force considering age, height, and weight. With the distribution data of measured value to predicted value ratio and non-dominant hand grip strength to dominant hand grip strength ratio, the model can be helpful to assess a reduction in grip strength.
Anthropometry ; Body Weight ; Hand ; Hand Strength* ; Korea* ; Nutrition Surveys* ; Regression Analysis ; Upper Extremity ; Waist Circumference

The aim of this study was to compare the current perception threshold (CPT) with a nerve conduction study (NCS) to evaluate the usefulness of CPT in the diagnosis of diabetic Peripheral Neuropathy (DPN). CPT measurement is quantitative method for assessment of peripheral sensory nerve function using electrical impulse. Enrolled in this study were 142 patients with type 2 diabetes who underwent both CPT testing and NCS between January 2013 and April 2016. DPN was diagnosed by NCS. CPT was performed on the right index finger and great toe of each patient. Patients with burning, tingling sensation and with longer history of diabetes tended to have a higher prevalence of DPN. In all frequencies tested (2000, 250, 5 Hz), CPT values of the DPN group were higher than the normal group. After classification in either the normoesthesia or hypoesthesia group according to CPT, the DPN group had a significantly higher prevalence of hypoesthesia than normal group. The receiver operating characteristics curve analysis showed that CPT had a high area under curve value for predicting the presence of DPN. In conclusion, CPT measurement is clinically valuable in detecting nerve dysfunction in patients with type 2 diabetes.
Area Under Curve ; Burns ; Classification ; Diabetic Neuropathies ; Diagnosis ; Fingers ; Humans ; Hypesthesia ; Methods ; Neural Conduction ; Peripheral Nervous System Diseases* ; Prevalence ; ROC Curve ; Sensation ; Toes

External ventricular drainage (EVD) is a common procedure performed in neurosurgical field. The purpose of this study was to introduce the linear intracranial calcification formed along EVD tract and to investigate its incidence, predisposing factors, and clinical impact. A total of 59 patients who underwent EVD insertion over a 1-year period were included in this study. The clinical factors and radiographic features between the occurrence and the non-occurrence groups were analyzed to investigate the predisposing factors and clinical impact related to the linear intracranial calcification in EVD tract. The linear intracranial calcification following EVD insertion occurred in 7 patients (11.9%). Among various risk factors assessed, only usage of bone dust (p =0.003) had contributed to linear intracranial calcification with statistical significance in univariate logistic regression analysis. Housefield unit (HU) scale was different between calcification (872.57 ± 46.15 HU) and EVD catheter (169.00 ± 61.35 HU). This study indicates that using bone dust for sealing a burr hole is the only predisposing factor for linear intracranial calcification formed in EVD tract.
Catheters ; Causality* ; Drainage* ; Dust ; Humans ; Incidence ; Logistic Models ; Risk Factors

This study was conducted in order to evaluate the response rate, progression free survival (PFS), overall survival (OS), safety and prognostic factors of weekly S-1, paclitaxel plus cisplatin chemotherapy in patients older than 65 years. We administered the triple regimen to patients older than 65 years with recurrent or metastatic gastric cancer. The response rate, PFS, safety of triple combination chemotherapy was evaluated. Clinical outcomes of the elderly group (≥65 years old; n = 28) were compared with those of the non-elderly group (<65 years old; n = 68). The common metastatic lesions were abdominal lymph nodes (57.1%). The median number of cycle was 3.3 cycles (range; 1~9). The disease response rate was 50.0%. The median PFS was 6.2±0.46 months and median OS was 7.6±1.46 months. This treatment was moderately tolerated with grade 3/4 neutropenia in 67.9%, grade 3 anemia in 21.4%. Non-hematologic toxicities were grade 3 general weakness in 25.0% of patients. Compare to younger patients, more grade 3/4 neutropenia, anemia and general weakness were observed. Treatment related mortality was 3.6%. Only body mass index (BMI) was correlated with overall survival by cox regression analysis (p = 0.043). Triple regimen in elderly gastric cancer patients showed relatively high disease response rate and survival duration similar to younger patients, but more frequent neutropenia, anemia and general weakness were seen as barriers to treatment in elderly patients. Especially in low BMI elderly patients, triple regimen chemotherapy must be used with caution.
Aged* ; Anemia ; Body Mass Index ; Cisplatin ; Disease-Free Survival ; Drug Therapy ; Drug Therapy, Combination* ; Geriatric Assessment ; Humans ; Lymph Nodes ; Mortality ; Neutropenia ; Paclitaxel ; Prognosis ; Stomach Neoplasms*