1.A comparative electromyographic study of the masseter and anterior temporal muscles during masticatory function of subjects with natural teeth and complete denture wearers.
Seung Hyun CHOI ; Boo Byung CHOI ; Dae Gyun CHOI
The Journal of Korean Academy of Prosthodontics 1991;29(1):53-71
No abstract available.
Denture, Complete*
;
Temporal Muscle*
;
Tooth*
2.A Case of Congenital Triangular Alopecia in Infancy.
Sung Pil YOON ; Hwan Tae SUNG ; Seung Gyun IN ; Seung Gyu LEE ; Tae Gyun LIM ; Gwang Seong CHOI
Korean Journal of Dermatology 2004;42(1):114-115
Congenital triangular alopecia is an uncommon nonscarring form of alopecia. It presents with isolated alopecic patch at the frontotemporal area of the scalp. Although previously considered congenital, this condition usually is discovered after 2 years of age and, more recently, is thought to be acquired. We report a case of congenital triangular alopecia in a 12 month old female who had the lesion since birth.
Female
;
Humans
3.A Case of Acantholytic Dyskeratotic Epidermal Nevus.
Seung Gyun IN ; Tae Gyun LIM ; Sung Pil YOON ; Jeong Hyun SHIN ; Gwang Seong CHOI
Korean Journal of Dermatology 2004;42(1):87-89
Acantholytic dyskeratosis is a regular histologic feature in Darier's disease, transient acantholytic dermatosis and warty dyskeratoma. It is also occasionally observed as an incidental histological finding in linear epidermal nevus. We report a case of acantholytic dyskeratotic epidermal nevus in an 11-month-old boy. The patient showed unilateral, brown colored verrucous plaque on the right shin. Histological finding showed hyperkeratosis, irregular acanthosis & focal acantholytic dyskeratosis.
4.A Case of Transient Acantholytic Dermatosis.
Tae Gyun LIM ; Seung Gyun IN ; Jeong Hun PARK ; Gwang Seong CHOI
Korean Journal of Dermatology 2002;40(8):1004-1006
Transient acantholytic dermatosis was first described by Grover in 1970. It is characterized by pruritic, discrete papules and papulovesicles distributed mainly on the trunk. The histologic hallmark of the disorder is focal acantholysis, several patterns of which have been described. The etiologic factors and pathogenesis remain unclear. We report a 45-year-old male patient with multiple severely pruritic, discrete papules and papulovesicles on the trunk. There were no oral cavity, palm and sole involvement. Histopathologic findings revealed epidermal acanthosis, acantholysis and hyperkeratosis with suprabasal splits. He showed good response to topical steroid and oral antihistamine.
Acantholysis
;
Humans
;
Male
;
Middle Aged
;
Mouth
;
Skin Diseases*
5.Echocardiographic and Clinical Factors Affecting Normalization of LV Systolic Function in Patients with Cardiomyopathy.
Joon Han SHIN ; So Yeon CHOI ; Myung Ho YOON ; Sung Gyun AHN ; Seung Soo SHIN ; Han Soo KIM ; Seung Jea TAHK ; Byung il CHOI
Korean Circulation Journal 2001;31(2):200-209
BACKGROUND: During clinical practice we found that left ventricular systolic function(LVSF) has been normalized in some patients with cardiomyopathy. We investigated the echocardiographic and clinical factors affecting normalization of LVSF in these patients. METHOD: The patients with LV systolic dysfunction(EF<40%) were evaluated with echocardiography, coronary angiography and/or 201-Thallium SPECT and follow-up echocardiography(FUE) one year later. They had no coronary, valvular, congenital heart diseases. Consecutive 50 patients with improved LVSF(EF> or =55%) in FUE were defined to Group 1(mean age 57+/-16, male 21, female 29, mean follow-up 18+/-6 month) and another consecutive 50 patients with sustained decreased LVSF(EF<40%) and no increment of EF over 10% in FUE were defined to Group 2(mean age 56+/-14, male 32, female 18, mean follow-up 20+/-6 month). RESULTS: By univariate analysis, significant factors affecting normalization of LVSF were female sex, non-smoker, first experience of dyspnea, absence of bundle branch block in ECG, end-diastolic dimension of LV(LVEDD), end-diastolic volume of LV(LVEDV), LA size, less sphericity, presence of pericardial effusion, peak and end systolic wall stress. By multivariate analysis, LVEDD(Group 1: 61+/-7, Group 2: 71+/-7mm, p<0.001), LVEDV(Group 1: 139+/-59, Group 2: 190+/-51ml, p<0.01), absence of bundle branch block in ECG and 1st attack of symptom were significant. By Receiver operating characteristics curve analysis, area under curve of LVEDD and LVEDV were 0.859(95%CI: 0.775-0.920) and 0.805(95%CI: 0.681-0.896), respectively. LVEDD< or =64mm predicted normalization of LVSF with a sensitivity 76% and a specificity 86%. CONCLUSION: Determination of cardiac dimension and volume by echocardiography is very important to predicting normalization of LV systolic function in primary myocardial disease. And this results suggest that myocardial structural integrity may be important for recovery of LV function in clinical setting.
Bundle-Branch Block
;
Cardiomyopathies*
;
Coronary Angiography
;
Dyspnea
;
Echocardiography*
;
Electrocardiography
;
Female
;
Follow-Up Studies
;
Heart Diseases
;
Humans
;
Male
;
Multivariate Analysis
;
Pericardial Effusion
;
ROC Curve
;
Sensitivity and Specificity
;
Statistics as Topic
;
Tomography, Emission-Computed, Single-Photon
6.Reactivation of Herpetic Keratitis in a Patient after Using Two Different Prostaglandin Analogues.
Hyun Seung YANG ; Ho Gyun PARK ; Sangkyung CHOI
Journal of the Korean Ophthalmological Society 2011;52(9):1119-1122
PURPOSE: To report a case of herpetic keratitis after administration of two different prostaglandin analogues. CASE SUMMARY: A 68-year-old female with a history of herpetic keratitis in her right eye after using latanoprost seven years previous presented with redness, mild ocular pain and tearing in the same eye. She had also been prescribed travoprost eye drops for both eyes for uncontrolled glaucoma one month earlier. The cornea in her right eye showed a dendritic epithelial defect with focal epithelial erosions. Travoprost treatment was discontinued, and the herpetic keratitis recovered completely in ten days with acyclovir ointment and oral agent. No further recurrence was observed in the following six months.
Acyclovir
;
Aged
;
Cloprostenol
;
Cornea
;
Eye
;
Female
;
Glaucoma
;
Humans
;
Keratitis, Herpetic
;
Ophthalmic Solutions
;
Prostaglandins F, Synthetic
;
Prostaglandins, Synthetic
;
Recurrence
;
Tears
;
Travoprost
7.Thyroid Metastasis from Breast and Lung Cancer in Patients with Underlying Hashimoto’s Thyroiditis
Seung-Gyun IM ; Hongyoon CHOI ; Seock-Ah IM ; Sun Wook CHO
International Journal of Thyroidology 2020;13(2):175-180
Metastatic disease involving the thyroid gland is uncommon. Thyroid metastases has been previously described from several primary cancers of lung, breast, and kidney. Because of the lower incidence and ambiguous clinical significance, it is not easy to consider thyroid metastasis and decide the optimal time for performing diagnostic examination. Here, we reported two cases of metastatic diseases of thyroid in patients who had underlying Hashimoto’s thyroiditis: a 39-year-old woman who had thyroid metastasis of breast cancer with underlying Hashimoto’s thyroiditis, and a 44-year-old woman with metastatic lung cancer.
8.A Case of Microvenular Hemangioma.
Seung Gyun IN ; Seung Gyu LEE ; Jeong Hyun SHIN ; Gwang Seong CHOI ; You Chan KIM
Korean Journal of Dermatology 2005;43(1):89-91
Microvenular hemangioma is an uncommon acquired vascular tumor of young to middle-aged adults of both genders. It usually presents as a small, solitary, purple to red papule or plaque on the extremities or trunk. Histologically, the tumor is composed of small branching venules with collapsed lumina and conspicuous pericytes infiltrating the full thickness of the reticular dermis. Because of histological similarity to a Kaposi's sarcoma, the awareness of microvenular hemangioma is important. We report a case of microvenular hemangioma in a 9-year-old girl.
Adult
;
Child
;
Dermis
;
Extremities
;
Female
;
Hemangioma*
;
Humans
;
Pericytes
;
Sarcoma, Kaposi
;
Venules
9.A Cases of Erythema Elevatum Diutinum.
Seung Gyu LEE ; Seung Gyun IN ; Jeong Hyun SHIN ; Gwang Seong CHOI ; Sung Pil YOON
Korean Journal of Dermatology 2003;41(12):1683-1685
Erythema elevatum diutinum(EED) is a rare chronic skin disease characterized by red, purple, and yellowish papules, plaques, and nodules that are usually distributed acrally and symmetrically over extensor surface. It is characterized histologically by a leukocytoclastic vasculitis. Although no treatment has shown a complete response, dapsone is reported to be effective to EED. We report a rare severe case of EED with good response to dapsone treatment.
Dapsone
;
Erythema*
;
Skin Diseases
;
Vasculitis
10.Feasibility of Loop-Mediated Isothermal Amplification for Rapid Detection of Methicillin-Susceptible and Methicillin-Resistant Staphylococcus aureus in Tissue Samples
Sang-Gyun KIM ; Gi Won CHOI ; Won Seok CHOI ; Chae Seung LIM ; Woong Sik JANG ; Ji Hoon BAE
Clinics in Orthopedic Surgery 2022;14(3):466-473
Background:
To date, few studies have investigated the feasibility of the loop-mediated isothermal amplification (LAMP) assay for identifying pathogens in tissue samples. This study aimed to investigate the feasibility of LAMP for the rapid detection of methicillin-susceptible or methicillin-resistant Staphylococcus aureus (MSSA or MRSA) in tissue samples, using a bead-beating DNA extraction method.
Methods:
Twenty tissue samples infected with either MSSA (n = 10) or MRSA (n = 10) were obtained from patients who underwent orthopedic surgery for suspected musculoskeletal infection between December 2019 and September 2020. DNA was extracted from the infected tissue samples using the bead-beating method. A multiplex LAMP assay was conducted to identify MSSA and MRSA infections. To recognize the Staphylococcus genus, S. aureus, and methicillin resistance, 3 sets of 6 primers for the 16S ribosomal ribonucleic acid (rRNA) and the femA and mecA genes were used, respectively. The limit of detection and sensitivity (detection rate) of the LAMP assay for diagnosing MSSA and MRSA infection were analyzed.
Results:
The LAMP result was positive for samples containing 10 3 colony-forming unit (CFU)/mL for 16S rRNA, 10 4 CFU/mL for femA, and 10 5 CFU/mL formecA. The limits of detection for 16S rRNA and femA were not different between MSSA and MRSA. For the 10 MSSA-positive samples, the LAMP assay showed 100% positive reactions for 16S rRNA and femA and a 100% negative reaction for mecA. For the 10 MRSA-positive samples, the LAMP assay showed 100% positive reactions for 16S rRNA and mecA but only 90% positive reactions for femA. The sensitivity (detection rate) of the LAMP assay for identifying MSSA and MRSA in infected tissue samples was 100% and 90%, respectively.
Conclusions
The results of this study suggest that the LAMP assay performed with tissue DNA samples can be a useful diagnostic method for the rapid detection of musculoskeletal infections caused by MSSA and MRSA.