1.Minor BCR-ABL1-Positive Acute Myeloid Leukemia Associated With the NPM1 Mutation and FLT3 Internal Tandem Duplication.
Moon Jung KIM ; Sunhyun AHN ; Seong Hyun JEONG ; Ja Hyun JANG ; Jae Ho HAN ; Jong Rak CHOI ; Sung Ran CHO
Annals of Laboratory Medicine 2016;36(3):263-265
No abstract available.
Aged
;
Base Sequence
;
Bone Marrow/metabolism/pathology
;
DNA Mutational Analysis
;
Female
;
Fusion Proteins, bcr-abl/*genetics
;
Gene Duplication
;
Humans
;
In Situ Hybridization, Fluorescence
;
Leukemia, Myeloid, Acute/diagnosis/*genetics
;
Multiplex Polymerase Chain Reaction
;
Mutation
;
Nuclear Proteins/*genetics
;
Philadelphia Chromosome
;
fms-Like Tyrosine Kinase 3/*genetics
3.Unifocal Langerhans Cell Histiocytosis of Frontal Bone in a Child.
Seong Jae HONG ; Sang Hun CHO ; Su Rak EO
Archives of Craniofacial Surgery 2013;14(1):69-72
Lateral eyebrow mass with primary skull lesion are rare in pediatric population. Although epidermoid cyst and dermoid cyst are the most commonly encountered skull lesions in pediatric population, Langerhans cell histiocytosis (LCH) is rarely reported. We report a case of LCH arising from the lateral eyebrow with osteolytic lesion involving the frontal bone. A 5-year-old boy was presented with a hard, fixed mass in his lateral eyebrow. Contrast magnetic resonance imaging revealed inhomogeneous enhancement of the mass with direct invasion of the frontal bone and adjacent dura mater. Under general anesthesia, linear incision at the lateral eyebrow region was made. Intraoperative evaluation revealed hard, fixed and well-defined soft tissue mass. The final extirpated mass was 2.5 x 2.4 cm in size, and was accompanied by a 1 x 1 cm sized defect on the frontal bone with intact dura mater. The surgical wound was closed primarily by a layer-by-layer fashion. Histologic examination was later performed for definite diagnosis. The histologic examination revealed abnormal proliferation of Langerhans cell with granuloma formation. Radionuclide bone scan and positron emission tomography was taken and revealed free of multi-organ involvement. At 3 months after surgery, natural looking contour at the lateral eyebrow region was observed with no tumor recurrence. Differential diagnosis of the hard and fixed mass at the lateral eyebrow region affecting the primary skull lesion from pediatric population includes epidermoid cyst, dermoid cyst and LCH. Generally, brief physical examination with plain X-ray view can be performed for clinical evaluation, but for a definite diagnosis, contrast MRI may be helpful.
Anesthesia, General
;
Child
;
Dermoid Cyst
;
Diagnosis, Differential
;
Dura Mater
;
Epidermal Cyst
;
Eyebrows
;
Frontal Bone
;
Granuloma
;
Histiocytosis
;
Histiocytosis, Langerhans-Cell
;
Humans
;
Magnetic Resonance Imaging
;
Physical Examination
;
Positron-Emission Tomography
;
Recurrence
;
Skull
4.K-Wire Breakage During Metalware Removal Due to a Defective K-Wire Shaft.
Seong Jae HONG ; Hyun Jic LEE ; Jin Young KIM ; Su Rak EO ; Sang Hun CHO
Archives of Plastic Surgery 2013;40(5):655-657
No abstract available.
5.Application of 3D Surface Scanners in Forensic Science and Medicine ( I ): Digital Storage of Human Skeletons and Development of Appraisal Methods for Incident Scenes.
Nak Eun CHUNG ; Hyung Nam KOO ; Hyun Moo KANG ; Sang Seob LEE ; Hye Jin PARK ; Hyung Joong KIM ; Kyung Rak LEE ; Ik Jo CHUNG ; Dae Yeol KIM ; Dal Won KIM ; Sang Beom LIM ; Saebomi LEE ; Han Soo HAN ; Jung LEE ; Jun Suk KIM ; Ki Woong MOON ; Byong Hyun KIM ; Kyun Woo CHO ; Jin Pyeo KIM ; Yeo Soo KIM ; Sung Ho KIM ; In Soo SEO ; Dae Kyun PARK ; Jae Kwang CHUNG ; Yi Suk KIM ; Seong Kyu CHOI ; U Young LEE ; Hoon LEE ; Chae Keun KIM ; In Soo LEE ; Hoon KANG ; Won Seob KIM ; Dong Kyu KIM ; Dong Soo KIM ; Hyeong Jin CHOI ; Dong Il PARK ; Hong Soon CHOI ; Si Ro KIM ; Yong Seok HEO
Korean Journal of Legal Medicine 2012;36(1):85-96
The aim of this project was to use 3D scanning data collected at incident scenes and various evidence to 1) develop surveying methods based on 3D data consisting of overall and detailed scene evidence, captured by long-range and micros-canner, which can be shared by personnel working in different fields such as forensic medicine, video analysis, physical analysis, traffic engineering, and fire investigation; 2) create digital storage for human skeletons and set the foundation for virtual anthropology; and 3) improve the credibility of 3D evidence by virtual remodeling and simulation of incident scenes and evidence to provide a basis for advanced and high-tech scientific investigation. Two complete skeletons of male and female were scanned using 3D micro-scanner. Each bone was successfully reproduced and assembled in virtual space. In addition, recreating evidence scheduled for invasive examination by creating RP (rapid prototype) was possible. These outcomes could play an important role in setting up the new field of virtual anthropology. Case-specific surveying methods were developed through analysis of 3D scanning data collected by long-range surface scanners at the scenes of vehicular accidents, falls, shootings, and violent crimes. A technique and recording method was also developed for detecting forged seals by micro-scanning the pressure exerted on the seal. Appraisal methods developed in this project could be utilized to secure 3D data of human skeletal remains and incident scenes, create a standard for application, and increase objectivity, reproducibility, and accuracy of scanning methods. We plan to develop case-specific 3D data analysis techniques to improve the credibility of analysis at the NFS and to establish a 3D data collection and analysis team.
Crime
;
Data Collection
;
Female
;
Fires
;
Forensic Medicine
;
Forensic Sciences
;
Humans
;
Male
;
Skeleton
;
Statistics as Topic
6.Subclinical Myocardial Dysfunction in Metabolic Syndrome Patients without Hypertension.
Jeong Min SEO ; Tae Ho PARK ; Dong Yeol LEE ; Young Rak CHO ; Hee Kyung BAEK ; Jong Seong PARK ; Moo Hyun KIM ; Young Dae KIM ; Sun Young CHOI ; Sun Mi LEE ; Young Seoub HONG
Journal of Cardiovascular Ultrasound 2011;19(3):134-139
BACKGROUND: The aim of this study was to evaluate myocardial function in patients with non-hypertensive metabolic syndrome. METHODS: We selected metabolic syndrome patients (n = 42) without evidence of hypertension and compared them to age-matched control individuals (n = 20). All patients were evaluated by two-dimensional and tissue Doppler echocardiography including tissue Doppler derived strain and strain rate measurements. RESULTS: There were no significant differences between the two groups in mitral E and A inflow velocities or the E/A ratio. However, systolic and early diastolic myocardial velocities, and strain rate were significantly lower in patients with metabolic syndrome than in the control group (all p < 0.05). Multiple stepwise regression analyses revealed that age, waist circumference, and systolic blood pressure were independently associated with peak systolic myocardial velocity. CONCLUSION: These results indicate that metabolic syndrome patients without hypertension may have decrease of myocardial systolic and early diastolic velocities on tissue Doppler imaging, even if they appear to have normal systolic and diastolic function on conventional echocardiography.
Blood Pressure
;
Echocardiography
;
Echocardiography, Doppler
;
Humans
;
Hypertension
;
Sprains and Strains
;
Waist Circumference
7.Management of Complete Tracheal Disruption after a Fall.
Yeon Soo KIM ; Woo Ik CHANG ; Jeong Rak LEE ; Jun Young ROH ; Sung Soon LEE ; Chang Young KIM ; Ji Yoon RYOO ; Seong Joon CHO
Journal of the Korean Society of Emergency Medicine 2007;18(1):84-87
A complete tracheal rupture due to blunt trauma is rare, and a high proportion of patients with this injury die prior to arrival at medical centers. Early diagnosis and prompt management is essential in order to reduce morbidity and mortality. A 38-year-old woman visited the emergency department after a fall from the 4th floor of a building. We confirmed that a complete tracheal disruption 4 cm above the carina by chest CT. We could not insert an endotracheal tube because the distal stump of the trachea was separated by 4 cm from the proximal stump, so we used percutaneous cardiopulmonary bypass for the prevention of hypoxia during the initial operative procedures. We performed resections and reconstruction of the injured trachea. Fourteen days after the operation we confirmed normal healing of the trachea with bronchoscopy. One year after the operation, the patient is healthy with no tracheal problems.
Adult
;
Anoxia
;
Bronchoscopy
;
Cardiopulmonary Bypass
;
Early Diagnosis
;
Emergency Service, Hospital
;
Extracorporeal Circulation
;
Female
;
Humans
;
Mortality
;
Multiple Trauma
;
Rupture
;
Surgical Procedures, Operative
;
Tomography, X-Ray Computed
;
Trachea
8.Laparoscopic Nephroureterectomy in Patient with an Upper Urinary Tract Transitional Cell Carcinoma: Safety and Efficacy.
Geun Soo KONG ; Sang Rak BAE ; Seong Ho CHO ; Ju Hyung SEO ; Gyung Tak SUNG
Korean Journal of Urology 2007;48(3):252-258
PURPOSE: To evaluate the safety and efficacy of a laparoscopic nephroureterectomy in patients with a transitional cell carcinoma of the renal pelvis and ureter. MATERIALS AND METHODS: All patients underwent a nephroureterectomy for an upper tract transitional cell carcinoma. Of these, 23 and 22 underwent a laparoscopic nephroureterectomy (LNU) and open nephroureterectomy (ONU), respectively, between January 2002 and June 2006. After the nephrectomy had been performed, a 5-6cm modified Gibson incision was created to allow dissection of the lower ureter and bladder cuff, and extraction of the intact specimen. A retrospective analysis was performed on the operating time, blood loss, analgesic requirement, ambulation time, interval to resume oral intake, hospital stay, complications and follow-up results for both groups. RESULTS: The LNU was superior to the ONU with regard to the mean operation time; 275 (190-390) versus 258 (180-400) (p=0.259), blood loss; 188 (130-250) versus 488ml (350-750) (p<0.05), ambulation time; 2.5 versus 3.3 days (p<0.05), interval to resume oral intake 2.1 versus 2.8 days (p<0.05), and hospital stay; 8.3 versus 11.1 days (p<0.05). Complications developed in 4 and 5 of the LNU and ONU patients, respectively, but all were resolved with conservative management. The mean follow-up duration of the LNU and ONU groups were 29 versus 14 months, respectively. CONCLUSIONS: Based on our experience, a laparoscopic nephroureterectomy is better tolerated with respect to pain, has less blood loss, shorter hospital stays, ambulation time and time to oral intake. LNU is safe for an upper tract transitional cell carcinoma, and is also an efficacious alternative to open surgery. However, a long-term follow-up will be warranted to ascertain accurate oncologic data.
Carcinoma, Transitional Cell*
;
Follow-Up Studies
;
Humans
;
Kidney Pelvis
;
Length of Stay
;
Nephrectomy
;
Retrospective Studies
;
Ureter
;
Urinary Bladder
;
Urinary Tract*
;
Walking
9.The clinical course of idiopathic membranoproliferative glomerulonephritis type 1.
Seuk Hee CHUNG ; Seung Hwan MOON ; Jeung Hoan PAIK ; Kyoung Tae KIM ; Se Woong CHOI ; Chang Jae LEE ; Young Rak CHO ; Seo Heui RA ; Won Suk AN ; Seong Eun KIM ; Ki Hyun KIM
Korean Journal of Medicine 2006;70(6):663-671
BACKGROUND: The manifestation of Membranoproliperative glomerulonephritis (MPGN) is variable from asymptomatic hematuria, nephrotic syndrome to advanced chronic kidney disease. The etiology, pathogenesis, and treatment of MPGN are unclear. The incidence of idiopathic MPGN is also rare in Korea, and the clinical course was rarely studied. So we investigated clinical course of idiopathic MPGN type 1. METHODS: From March 1990 to November 2004, renal biopsy was done in about 1500 patients in Dong-A universty hospital. Among them, 16 patients were diagnosed as idiopathic MPGN. Fourteen patients were observed over 6 months. We analyzed clinical data of these patients retrospectively. RESULTS: Male to female ratio of total 16 patients is 2.2:1. Mean age of patients was 37.6 years (14-76 years) at the time of diagnosis. Thirteen cases (81%) had nephrotic range proteinuria, 8 cases (50%) had hypertention, 12 cases (75%) had edema, and 4 cases (25%) had decreased renal fuction (serum creatinine>1.2 mg/dL) at the time of diagnosis. Average observation time was 55.7+/-37.4 (6-122)months. Six cases ended up with progressive renal failure. Three cases achieved complete remission. Renal survival time for 50% of cases was 92 months. In our study, edema and decreased renal fucntion at the time of diagnosis were related with later development of progressive renal failure (p<0.05). Of the total 14 cases, 4 cases ware treated conservatively, 6 cases were treated with anti-platelet agents, and 4 cases were treated with anti-platelet agents and prednisone. In conservative treatment group, 1 case ended up with progressive renal failure and 1 case achieved complete remission. In anti-platelet agents treatment goup, 4 cases ended up progressive renal failure. In combined anti-platelet agents and prednisone treatment group, 1 case ended up progressive renal failure and 2 cases achieved complete remission. However, the effect of each treatment is inconclusive because the number of the patients are too small. CONCLUSIONS: We suspect that deceased renal function and edema at the time of diagnosis may be risk factor predicting progressive renal failure in patients with idiopathic MPGN type 1.
Biopsy
;
Diagnosis
;
Edema
;
Female
;
Glomerulonephritis
;
Glomerulonephritis, Membranoproliferative*
;
Hematuria
;
Humans
;
Incidence
;
Korea
;
Male
;
Nephrotic Syndrome
;
Prednisone
;
Proteinuria
;
Renal Insufficiency
;
Renal Insufficiency, Chronic
;
Retrospective Studies
;
Risk Factors
10.A Significance of Thrombocytosis as a Prognostic Factor in Patient with Epithelial Ovarian Cancer.
Jin Sil PARK ; Yoo Seock REE ; Gyu Rak LEE ; Young Jae KIM ; Keon Ho PARK ; Seong Hee KIM ; Min Soo PARK ; Sam Hyun CHO ; Kyung Tai KIM
Korean Journal of Obstetrics and Gynecology 2003;46(10):1912-1919
OBJECTIVE: We tried to determine the relevance of thrombocytosis as a possible prognostic factor in patient with epithelial ovarian cancer. METHODS: One hundred and eighty-three (183) patients with epithelial ovarian cancer had been surgically treated in our hospital between January 1984 and December 2001. Uni- and multivariate analyses were performed of 9 clinical variables including age, FIGO stage, histologic subtype, grade, volume of residual tumor, presence of ascites, pretreatment levels of hemoglobin, platelet, and tumor marker (CA 125). The Kaplan-Meier method and log-rank test were used for univariate analysis and a multiple regression analysis based on the Cox proportional hazards model was done to find the independent prognostic variables. RESULTS: Prevalence of thrombocytosis was 20.8% and significantly correlated with FIGO stage (p=0.015), tumor grade (p=0.029), presence of ascites (p=0.001) and volume of residual tumor (p=0.032). Significant difference in survival between patients with or without thrombocytosis was found (p=0.006). Multivariate analysis model was used and only volume of residual tumor (p=0.004) was significant independent prognostic variable. Thrombocytosis (p=0.041) was significant independent prognostic variable in patients with early FIGO stage of disease. CONCLUSION: Thrombocytosis is a useful prognostic factor in epithelial ovarian cancer and significantly independent prognostic factor in patients with early FIGO stage of disease.
Ascites
;
Blood Platelets
;
Humans
;
Multivariate Analysis
;
Neoplasm, Residual
;
Ovarian Neoplasms*
;
Prevalence
;
Proportional Hazards Models
;
Thrombocytosis*

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