1.MR imaging of synovial sarcoma.
Jin Joo LE ; Hong Sik BYUN ; Kie Hwan KIM ; Il Ju YOON ; Soo Yil CHIN
Journal of the Korean Radiological Society 1993;29(5):1057-1061
MR images of seven patients with histologically documented synovial sarcoma were reviewed to find the suggestive or pathognomonic findings of the disease. MR appearance of the tumor was inhomogeneous, multiseptated mass with various degree of internal septation and infiltrative tumor margin. The signal intensity of the mass was slightly hyperintense relative to muscle on T1-weighted image and hyperintense relative to subcutaneous fatty tissue on T2-weighted image.
Adipose Tissue
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Humans
;
Magnetic Resonance Imaging*
;
Sarcoma, Synovial*
2.Clinical experiences with total nutrient admixture in 26 cases.
Yong Soon KWON ; Eun Jin CHOI ; Soon Ok BYUN ; Ji Sub OH ; Hwan Seon RYU ; Charles D SANDS
Journal of the Korean Pediatric Society 1992;35(7):921-932
No abstract available.
Parenteral Nutrition, Total
3.Left External Iliac and Common Femoral Artery Occlusion Following Blunt Abdominal Trauma without Associated Bone Injury.
Chun Sung BYUN ; Il Hwan PARK ; Hye jin DO ; Keum Seok BAE ; Joong Hwan OH
The Korean Journal of Thoracic and Cardiovascular Surgery 2015;48(3):214-216
Blunt abdominal trauma may cause peripheral vascular injuries. However, blunt abdominal trauma rarely results in injuries to the external iliac and common femoral arteries, which often stem from regional bone fractures. Here, we present the case of a patient who had experienced trauma in the lower abdominal and groin area three months before presenting to the hospital, but these injuries did not involve bone fractures and had been managed conservatively. The patient came to the hospital because of left lower leg claudication that gradually became severe. Computed tomography angiography confirmed total occlusion of the external iliac and common femoral arteries. The patient underwent femorofemoral bypass grafting and was discharged uneventfully.
Angiography
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Femoral Artery*
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Fractures, Bone
;
Groin
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Humans
;
Leg
;
Transplants
;
Vascular System Injuries
4.Diagnosis and Operation Results for Chronic Lateral Ankle Instability with Subtle Cavovarus Deformity and a Peek-A-Boo Heel Sign
Dong Woo SHIM ; Jae Wan SUH ; Kwang Hwan PARK ; Jin Woo LEE ; Junwoo BYUN ; Seung Hwan HAN
Yonsei Medical Journal 2020;61(7):635-639
Cavovarus deformity is considered an anatomical risk factor for chronic lateral ankle instability (CLAI). However, subtle deformity can be difficult to detect, and its correction is controversial. The current study aimed to evaluate clinical and radiographic outcomes of a modified Broström procedure (MBP) with additional procedures for CLAI with subtle cavovarus deformity and a positive peek-a-boo heel sign. We reviewed the records of 15 patients who underwent MBP with additional procedures for CLAI with a positive peek-a-boo heel sign between August 2009 and April 2015. Consecutive physical and radiographic examinations were performed. The visual analog scale (VAS) for pain, the American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, and the Karlsson-Peterson (KP) ankle score were applied to assess clinical outcomes. Weight bearing radiographs, hindfoot alignment view, and ankle stress radiographs were also examined. The mean follow-up period was 58.5 months. Calcaneal lateral closing wedge osteotomy was performed in seven patients to correct fixed hindfoot varus, and first metatarsal dorsiflexion osteotomy was performed in 11 patients to correct plantarflexion of the first ray. Three patients underwent both procedures. Mean VAS, AOFAS, and KP ankle scores improved significantly (p=0.001), and instability did not recur. Radiographically, all stress parameters improved significantly (p=0.007). Simultaneous correction of a positive peek-a-boo heel sign and cavovarus deformity with MBP for CLAI improves clinical outcomes and prevents recurrent instability. A comprehensive evaluation and cautious approach for subtle cavovarus deformity should be followed when treating patients with CLAI. This trial is registered on Clinical Research Information Service (CRiS, KCT0003287).
5.Clinical Assessment of Risk Factors for the Intracerebral Hemorrhage in Patients with Chronic Renal Failure.
Hyoung Soo BYUN ; Choong Hyun KIM ; Jin Hwan CHEONG ; Jae Min KIM
Korean Journal of Cerebrovascular Surgery 2010;12(2):70-75
OBJECTIVE: Cerebrovascular and cardiovacular diseases are the main causes of death in patients with chronic renal failure (CRF) and who are undergoing hemodialysis. We investigated the risk factors for the development of intracerbral hemorrhage (ICH) in this population. METHODS: We retrospectively reviewed a total of 53 patients who underwent hemodialysis for CRF and who developed ICH. The patients' demographics, including gender and age, the duration of the hemodialysis, the initial Glasgow Coma Scale (GCS) score, the underlying causes of CRF, the past medication history, the location and amount of hemorrhage and the therapeutic modality for ICH were analyzed. RESULTS: The development of ICH significantly increased in the old age patients (> or = 65 years), the patients with a prolonged history of hemodialysis (> or = 5 years) and the patients with hypertension (p < 0.05). However, gender, anemia (hemoglobin < or = 8.0 g/dl) and the initial systolic blood pressure (> or = 180 mmHg) were not significantly correlated with the occurrence of intracerebral hemorrhage in the hemodialyzed patients. CONCLUSION: The present study suggests that the development of ICH in patients with CRF is increased in the old age patients, the patients with a prolonged history of hemodialysis and the medically co-morbid patients. To avoid this disastrous complication, we should try to minimize the modifiable risk factors of hemorrhagic stroke in CRF patients.
Anemia
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Blood Pressure
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Cause of Death
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Cerebral Hemorrhage
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Demography
;
Glasgow Coma Scale
;
Hemorrhage
;
Humans
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Hypertension
;
Kidney Failure, Chronic
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Renal Dialysis
;
Retrospective Studies
;
Risk Factors
;
Stroke
6.Cutaneous Angiosarcoma Developed at Site of Herpes Zoster Scar: Wolf's Isotopic Response.
Hyun Hee CHO ; Seung Hwan PAIK ; Hee Jin BYUN ; Kwang Hyun CHO
Korean Journal of Dermatology 2012;50(4):367-370
Angiosarcoma is a rare malignant vascular tumor of endothelial origin. It can involve any organ, including the skin, soft tissue, liver, bone, spleen, and orbit. Skin is the most frequent site of primary angiosarcoma, however, metastatic skin involvement of angiosarcoma is exceptional. Wolf's isotopic response implies that the new disease appeared at the site of an already healed skin disease. Several types of cutaneous lesions have been described, occurring within cleared cutaneous herpes zoster, or herpes simplex lesions. These lesions include comedones, granulomatous diseases, tinea, furunculosis, wart, psoriasis, pseudolymphoma, leukemia, lymphoma, basal cell carcinoma, squamous cell carcinoma and cutaneous metastases, from internal carcinoma. Herein, we report a case of cutaneous angiosarcoma of unknown origin that has developed at the site of a scar, after herpes zoster in a 79-year-old man as isotopic response.
Aged
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Carcinoma, Basal Cell
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Carcinoma, Squamous Cell
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Cicatrix
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Furunculosis
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Hemangiosarcoma
;
Herpes Simplex
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Herpes Zoster
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Humans
;
Leukemia
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Liver
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Lymphoma
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Methylmethacrylates
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Neoplasm Metastasis
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Orbit
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Polystyrenes
;
Pseudolymphoma
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Psoriasis
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Skin
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Skin Diseases
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Spleen
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Tinea
;
Warts
7.A Case of Gastric Cancer with Rectal Metastasis Developing Rectal Stricture.
Jung Hwan KIM ; Hyo Jin PARK ; Kwi Soon LEE ; Ki Hyun BYUN ; Kwan Sik LEE ; Sang In LEE ; In Suh PARK
Korean Journal of Gastrointestinal Endoscopy 1997;17(6):867-871
A 59-year old female was admitted to Yongdong Severance Hospital due to diarrhea and lower abdominal pain lasting for 2 months. She had a previous history of admission for stomach cancer on September 1995. At that time, she underwent total gastrectomy and gastroduodenostomy. The pathology of the specimen revealed a signet ring cell carcinoma of stomach. On admission, computerized tomography revealed rectal wall thickness and no evidence of lymph node enlargement in abdomen and pelvic cavity. Barium enema study showed stricture of rectum. After sigmoidoscopic biopsy, she was diagnosed as a rectal metastasis resulted in rectal stricture and underwent sigmoid loop colostomy. Hence we present a case of gastric cancer with rectal metastasis resulted in rectal stricture.
Abdomen
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Abdominal Pain
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Barium
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Biopsy
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Carcinoma, Signet Ring Cell
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Colon, Sigmoid
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Colostomy
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Constriction, Pathologic*
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Diarrhea
;
Enema
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Female
;
Gastrectomy
;
Humans
;
Lymph Nodes
;
Middle Aged
;
Neoplasm Metastasis*
;
Pathology
;
Rectum
;
Stomach
;
Stomach Neoplasms*
8.Analysis of Sternal Fixation Results According to Plate Type in Sternal Fracture.
Chun Sung BYUN ; Il Hwan PARK ; Wan Jin HWANG ; Yeiwon LEE ; Hyun Min CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2016;49(5):361-365
BACKGROUND: Sternal fractures are relatively rare, and caused mainly by blunt anterior chest wall trauma. In most cases, sternal fractures are treated conservatively. However, if the patient exhibits problematic symptoms such as intractable chest wall pain or bony crepitus due to sternal instability, surgical correction is indicated. But no consensus exists regarding the most appropriate surgical method. We analyzed the results of surgical fixation in cases of sternal fracture in order to identify which surgical method led to the best outcomes. METHODS: We retrospectively reviewed the medical records of patients with sternal fractures from December 2008 to December 2011, and found 19 patients who underwent open reduction and internal fixation of the sternum with a longitudinal plate (L-group) or a T-shaped plate (T-group). We investigated patients' characteristics, clinical details regarding each case of chest trauma, the presence of other associated injuries, the type of open reduction and fixation, whether a combined operation was performed, and postoperative complications. RESULTS: Of the 19 patients, 10 patients (52.6%) were male, and their average age was 56.8 years (range, 32 to 82 years). Seven patients (36.8%) had isolated sternal fractures, while 12 (63.2%) had other associated injuries. Seven patients (36.8%) were in the L-group and 12 patients (63.2%) were in the T-group. Three patients in the L-group (42.9%) showed a loosening of the fixation. In all patients in the T-group, the fracture exhibited stable alignment. CONCLUSION: Open reduction and internal fixation with a T-shaped plate in sternal fractures is a safer and more efficient treatment method than treatment with a longitudinal plate, especially in patients with a severely displaced sternum or anterior flail chest, than a longitudinal plate.
Bone Plates
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Consensus
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Flail Chest
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Fracture Fixation
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Humans
;
Male
;
Medical Records
;
Methods
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Postoperative Complications
;
Retrospective Studies
;
Sensitivity Training Groups
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Sternum
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Thoracic Injuries
;
Thoracic Wall
;
Thorax
9.MR Findings of Chondromalacia Patella: Correlation of the Grade and Associated Lesions with ArthroscopicFindings.
Yon Su CHUNG ; Soon Tae KWON ; Hwan Do LEE ; Yong Soo KANG ; Ki Yong BYUN ; Kwang Jin RHEE
Journal of the Korean Radiological Society 1998;38(2):345-350
PURPOSE: To assess the MR findings of chondromalacia patella and correlate the grade and associated lesionswith the arthroscopic findings. MATERIALS AND METHODS: Twenty-five patients with pain in the anterior part of theknee underwent fat-suppressed axial and coronal T2-weighted, dual echo sagittal proton density-weighted andT2-weighted, and in some cases, T1-weighted and T2*-weighted imaging, using a 10-cm field of view, and a 5-inchgeneral purpose coil. We retrospectively assessed these find dings, and the locations, grades and associatedlesions, and correlated these with the arthroscopic findings. RESULTS: Fourteen cases(56%) of chondromalaciapatellae were arthroscopic grade I / II, nine(36%) were grade III, and two(8%) were grade IV; associated lesionswere medial synovial plicae (16 cases, 64%), meniscus tear (10 ; 40%), cruciate ligament injury (two ; 8%),complete or incomplete discoid meniscus (four ; 16%), bipartite patella (one ; 4%) and Osgood-Schlatter disease(one ; 4%). In 24 cases, MR imaging indicated chondromalacia patella ; 17 cases were grade I / II, five were gradeIII, and two were grade IV. the location of chondromalacia patella was the medial facet (five cases ; 20%), lateralfacet (three ; 12%), junction of the medial and odd facet (13 ; 52%), and diffuse involvement (four ; 16%). Thesensivity and specificity of MR imaging were 72% and 96% respectively. CONCLUSION: We evaluated the exact locationand grade of chondromalacia patella and associated lesions, as seen on MR images. These and the arthroscopicfindings showed close correlation, and in cases involving this condition, MRI is thus a useful indicator of anappropriate surgical method and plan.
Cartilage Diseases*
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Humans
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Ligaments
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Magnetic Resonance Imaging
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Patella*
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Protons
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Retrospective Studies
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Sensitivity and Specificity
10.Reliability and Validity of the Korean Version of the Psychotic Symptom Rating Scale.
Sun Min JUNG ; Mi Kyung KIM ; Jung Bin LEE ; Jin Hwan CHOI ; Bong Joo JUNG ; Won Tan BYUN
Journal of Korean Neuropsychiatric Association 2007;46(3):201-213
OBJECTIVES: Psychotic Symptom Rating Scale (PSYRATS) is an assessment tool to measure the severity of different dimensions of auditory hallucinations and delusions. The reliability and validity of the Korean version of PSYRATS (K-PSYRATS) were examined in Korean patients with major psychosis. METHODS: The inter-rater reliability of the K-PSYRATS was determined from the videotaped interviews of the five schizophrenic patients. To measure validity and internal consistency reliability, the 109 patients with auditory hallucinations or delusions were assessed using the K-PSYRATS, Positive and Negative Syndrome Scale (PANSS) and Clinical Global Impression-Severity (CGI-S) scale. RESULTS: K-PSYRATS was found to have excellent inter-rater reliability (intra-class correlation coefficient of auditory hallucination= 0.81, p<.001, intra-class correlation coefficient of delusion=0.97, p<.001) and internal consistency reliability (Cronbach's alpha of auditory hallucination=0.77, Cronbach's alpha of delusion=0.76). Significant correlation was found between K-PSYRATS and positive syndrome subscale of PANSS and CGI. CONCLUSION: K-PSYRATS is a useful assessment instrument for psychotic symptoms in Korea.
Delusions
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Hallucinations
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Humans
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Korea
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Psychotic Disorders
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Reproducibility of Results*