1.A Case of Kimura's Disease Presenting as a Rhinophyma-like Configuration.
Moon Jung CHOI ; Hyun Jeong PARK ; Baik Kee CHO ; Jun Hee BYUN ; Wha Young AHN
Annals of Dermatology 2003;15(2):85-88
Kimura's disease is a benign, uncommon, chronic inflammatory condition that usually presents with painless subcutaneous nodules or plaques. Head and neck are the most frequently involved sites in Kimura's disease. Mandible is the most commonly involved, followed by neck, cheek, scalp and forehead. Other possible sites are oral cavity, inguinal area and extremities, but there have been no reports involving the nose, especially the one that looks like a rhinophyma. We describe a case of Kimura's disease presenting like a rhinophyma.
Cheek
;
Extremities
;
Forehead
;
Head
;
Mandible
;
Mouth
;
Neck
;
Nose
;
Rhinophyma
;
Scalp
2.Development of Effective Cryopreservation Method for Mouse Oocytes.
Su Jin CHOI ; Soo Kyung KIM ; Ji Sun KIM ; Jae Won CHO ; Jin Hyun JUN ; Hye Kyung BYUN
Korean Journal of Fertility and Sterility 2004;31(1):75-81
OBJECTIVE: The purpose of this study was to evaluate the efficacy and effect of various cryopreservation method on the survival and the cytoskeletal stability of metaphase II mouse oocyte. METHODS: Mouse ovulated oocytes were collected and cryopreserved by a modified slow-freezing method with 1.5 M 1,2-propanediol (PrOH)+0.1 M sucrose or by vitrification using cryo loop and EM grid with 40% ethylene glycol+0.6 M sucrose. Four hours after thawing, intact oocytes were fixed and stained with fluorescein isothiocyanate (FITC)-conjugated monoclonal anti-beta-tubulin antibody to visualize spindle and propidium iodide (PI) to visualize chromosome. Spindle morphology was classified as follows: normal (barrel-shaped), slightly and absolute abnormal (multipolar or absent). RESULTS: Survival rate of the frozen-thawed oocytes in vitrification group was significantly higher than that of slow-freezing group (62.7% vs. 24.4%, p<0.01). Vitrification with cryo loop showed significantly higher survival rate than that with EM grid (67.7% vs. 53.5%, p<0.05). On the other hand, proportion of normal spindle and chromosome configurations of the frozen-thawed oocytes between two vitrification group was not significantly different. CONCLUSION: For mouse ovulated oocytes, vitrification with cryo loop may be a preferable procedure compared to slow-freezing method. Further study should be needed to investigate developmental competency of frozen-thawed mouse oocytes.
Animals
;
Cryopreservation*
;
Fluorescein
;
Hand
;
Metaphase
;
Mice*
;
Oocytes*
;
Propidium
;
Propylene Glycol
;
Sucrose
;
Survival Rate
;
Vitrification
3.Five - year Trends of Cerebrovascular Surgery in a Neurosurgical Department with a Small Volume of Practice at a Single Institute with Reference to the Endovascular Treatment.
Hyoung Soo BYUN ; Hyoung Joon CHUN ; Hyeong Joong YI ; Young Jun LEE ; Hyun Young KIM ; Dong Won KIM
Korean Journal of Cerebrovascular Surgery 2010;12(2):91-97
OBJECTIVE: In recent years, the neurosurgeon's role in managing cerebrovascular diseases (CVD) has becomes rapidly challenged and overlapped with other specialists. Furthermore, the patterns of CVD and patient recruitment have also changed. We conducted a retrospective study regarding the practical trends of CVD with reference to the management paradigms at our institute. METHOD: We reviewed all the available data, including the annual reports, the daily department records, the medical records and the radiographic films of the CVD patients who had been admitted to our Neurosurgery Department during the five years between Jan. 2004 and Dec. 2008. RESULTS: The total numbers of CVD operations showed a slight initial increase, but then they remained steady for the latter 3 years. The number of cases of non-angiomatous hemorrhage has been relatively steady, regardless of surgery. The total numbers of treated aneurysms increased, but the main body of this increment was attributed to the initiation of endovascular treatment and increased identification of unruptured vascular lesions. Vascular malformations were sustained with a small number of cases due to referring them to other institutes for radiosurgery, except for the cases that required urgent hemorrhagic evacuation. CONCLUSION: Hemorrhagic CVDs tended to decrease either due to increasing identification before rupture or shifting such patients into a large volume hospital. The increasing awareness of ischemic CVD, the early detection of unruptured aneurysms, and the separation of medical responsibilities from neurologists have all pushed neurosurgeons to make treatment plans in a more cooperative fashion, instead of a competitive way. Neurosurgeons should be furnished with several revolutionary surgical options to widen their scope of managing patients with CVD.
Academies and Institutes
;
Aneurysm
;
Hemorrhage
;
Humans
;
Infarction
;
Intracranial Aneurysm
;
Medical Records
;
Neurosurgery
;
Patient Selection
;
Radiosurgery
;
Retrospective Studies
;
Rupture
;
Specialization
;
Subarachnoid Hemorrhage
;
Vascular Malformations
;
X-Ray Film
4.MRImaging of Solid Cerebellar Tumors in Adult.
Hong Sik BYUN ; Moon Hee HAN ; Ki Jun KIM ; Kee Hyun CHANG ; Sung Wook CHOO ; In Kyu YU ; Kyu Ho CHOI
Journal of the Korean Radiological Society 1995;33(1):15-20
PURPOSE: The solid variety of cerebella r tumors in adult is relatively uncommon. This study is to describe the characteristic MR findings of various solid cerebellar tumors in adult. METHODS: Twenty three cerebellar solid tumors from 22 consecutive patients over age of 15 with surgical confirmations were retrospectively evaluated with MR imaging. H istologic diagnosis included hemangioblastoma (n=6), metastasis (n=6), high-grade astrocytoma (n=3), and medulloblastoma (n=8). The MR findings were reviewed with attention to the size, the signal intensity of the tumors, pattern of enhancement, tumoral margin, degree of peritumoral edema, signal void vascular structures within and/or around the tumor, and location in relation to attachment to the pial surface of the tumor. RESULTS: Solid hemangioblastomas consistently showed slightly low or iso signal intensity on T1 -weighted images and high intensity on T2-weighted images, dense homogeneous enhancement, and signal void vessels within and/or around the mass. Metastatic tumors showed various find ings with predominantly low or iso signal intensity on T2-weighted images. Medulloblastomas was midline and/or paramidline in location, and had larger mass formation. High-grade astrocytomas revealed nonspecific MR findings with no signal void vessels. CONCLUSION: Hemangioblastoma, metastasis, malignant astrocytoma, and medulloblastoma should be included in differential diagnosis of solid cerebellar tumors in adult. Dense homogeneous enhancement and signal void vessels are characteristic of hemangioblastoma. The signal intensity of the tumor, and presence of signal void vessels, location and enhancement pattern can be some value in differential diagnosis of solid cerebellar tumors in adult.
Adult*
;
Astrocytoma
;
Cerebellar Neoplasms*
;
Diagnosis
;
Diagnosis, Differential
;
Edema
;
Hemangioblastoma
;
Humans
;
Magnetic Resonance Imaging
;
Medulloblastoma
;
Neoplasm Metastasis
;
Retrospective Studies
5.The Efficacy of Recombinant Human Follicle Stimulating Hormone (rhFSH) in Human IVF-ET Program.
Kuk Sun HAN ; Hong Bok LEE ; In Ok SONG ; Yong Seog PARK ; Hye Kyung BYUN ; Jin Hyun JUN ; Mi Kyoung KOONG
Korean Journal of Fertility and Sterility 2002;29(1):45-56
OBJECTIVES: Recently, recombinant FSH (rFSH) has been manufactured using a Chinese hamster ovary cell line transfected with the gene encoding human FSH. Both rFSH and urinary gonadotropin (uFSH) could be used for controlled ovarian hyperstimulation (COH). However, uFSH implies a number of disadvantages, such as batch-to-batch inconsistency, no absolute source control, dependence on large amounts of urine, low specific activity, and low purity. The purpose of this study was to evaluate the efficacy of rFSH in human IVF-ET program. MATERIALS AND METHODS: A total of 508 infertile women was enrolled in this study. They are classified into rFSH group (n=177) or uFSH group (n=331), and all of them were matched by age and cause of infertility in same period. The Puregon(R) (Organon, Holland) was used as rFSH, and the Metrodin-HP(R) (Serono, Switzeland) and Humegon(R) (Organon, Holland) was used as uFSH. We subdivided the patients into three age groups. The outcomes of IVF-ET program were analyzed using the statistical package for social sciences (SPSS). RESULTS: There was no significant differences in the level of estradiol on hCG injection day, the numbers of retrieved oocytes, matured oocytes, fertilized oocytes, transferred embryos, frozen embryos between the two groups. The total dose (IU) of gonadotropin for COH was significantly lower in the rFSH group compared to uFSH group (1339+/-5491.1 vs 2527.8+/-1075.2 IU, p<0.001). Clinical pregnancy rate per embryo transfer in the rFSH group showed increasing tendency, compared to the uFSH group, but there was no statistical significance (35.2% vs 29.3%). Our results demonstrated that the relative efficiency of rFSH compared with uFSH is higher in older patients. CONCLUSIONS: The ovarian stimulatory effect and clinical outcome of recombinant FSH was similar to that of the urinary gonadotropin. The IVF-ET cycles with significantly lower dose of gonadotropin in rFSH group showed comparable results. Therefore, we suggest that recombinant FSH is more potent and effective than urinary gonadotropin.
Animals
;
Cell Line
;
Cricetinae
;
Cricetulus
;
Embryo Transfer
;
Embryonic Structures
;
Estradiol
;
Female
;
Follicle Stimulating Hormone, Human*
;
Gonadotropins
;
Humans*
;
Infertility
;
Oocytes
;
Ovary
;
Pregnancy Rate
;
Social Sciences
6.Peritoneal dialysis in spinal cord injured patient.
Keun LEE ; Soo Hyun YANG ; Dong Ho CHE ; Bong Chul PARK ; Jun Gu JO ; Jong Hoon BYUN
Korean Journal of Nephrology 1991;10(1):126-128
No abstract available.
Humans
;
Peritoneal Dialysis*
;
Spinal Cord*
7.Comparision of Heoatitis B Virus Markers in the Serum and the Cerebrospinal Fluid.
Sang Dug SUH ; Seong Min KIM ; Jun LEE ; Gun Ju PARK ; Hyun Cheol DO ; Yeung Ju BYUN
Yeungnam University Journal of Medicine 1995;12(2):282-291
We investigated HBV markers in serum and cerebrospinal fluid of 50 subjects with neurologic disorders or other disorders, who visited Dept. of neurology, college of medicine, Yeungnam University, from April-1 to August-31 1994 and were performed cerebrospinal fluid analysis to investigate the detection rate of HBV markers in cerebrospinal fluid and the possibility of neurologic disorders associated with HBV infection. The results were as follows. The positivity of HBsAg and. HBV prevalence rate in serum were 6(12.04) and 37(74.0%). Thf, number of patient with HBsAg, only anti-HBV and no markers were 6(12.0%), 31(62.0%) and 13(26.0%), respectively. The positivity of HBsAg and HBV prevalence rate in cerebrospinal fluid were 3(6%) and 18(36.0%). The number of patient with HBsAg, only anti-HBV and no markers were 6(100.0%), 12(38.7%) and 0(0.0%) respectively. The number of patient with virus associated diseases(VAD) and non virus associated diseases(NVAD) were 26(52%) and 24(48%). The HBV prevalence rate in serum of VAD and NVAD groups were 88.5% and 58.3% (p<0.05). The HBV prevalence rate in CSF of VAD and NVAD groups were 53.8% and 16.7%(p<0.05). The HBV prevalence rate in serum and CSF of VAD and NVAD groups were 60.9% and 28.6%
Cerebrospinal Fluid*
;
Hepatitis B Surface Antigens
;
Herpesvirus 1, Cercopithecine*
;
Humans
;
Nervous System Diseases
;
Neurology
;
Prevalence
8.Arthroscopic Transglenoid Suture Technique ( Rhee's method ): Cadaveric Studies on Relationship between Pinning site and Neurovascular Structures.
Kwang Jin RHEE ; Ki Yong BYUN ; Jun Young YANG ; Jae Gie SONG ; Hyun Tae JUNG ; Sang Bum KIM
The Journal of the Korean Orthopaedic Association 1998;33(5):1400-1406
Arthroscopic treatment of shoulder instability involves two techniques mainly, transglenoid suture technique and anterior anchoring system. However, anterior anchoring system has some disadvantages such as limited indication, high cost, technical difficulty and incapability to suture or reconstruct for all types of Bankart lesion. Disadvantages of transglenoid suture techniques are indirect suture tie, bump effect and possibility of the suprascapular nerve injury. The authors use modified transglenoid suture technique (Rhees method) for shoulder instability involving Bankart lesion, type II SLAP lesion and capsular laxity. The purpose of this study is to accurately describe the relationship between the major neurovascular structures and the pinning sites used in transglenoid suture technique (Rhees method). Placement of two or three arthroscopic Beath pinning sites was simulated in four fresh cadaveric shoulder specimens by placing Steinman pins into the glenoid rim under open field. The specimens were then dissected and the relationship of the pinning sites to the suprascapular nerve and suprascapular artery were recorded. In Bankart lesion repair, safe zone of pinning sites were 2 and 5 oclock in two portals in right shoulder, safe zone of pinning sites were 7 and 10 oclock in two portals in left shoulder. Safe direction of pinning was as possible as inferomedial side in scapula. In type II SLAP repair, safe zone of pinning sites were 2 oclock and just above 2 oclock of glenoid in right shoulder and 10 oclock and just above 10 oclock of glenoid in left shoulder. Safe direction of pinning was pararell to glenoid cavity and slightly superior in horizontal plane. From this study, these sites and directions appeared to be safe. Proper pinning depends on careful attention to the topographical anatomy about the shoulder.
Arteries
;
Cadaver*
;
Glenoid Cavity
;
Scapula
;
Shoulder
;
Suture Techniques*
;
Sutures*
9.Cardiac Arrest as the Initial Presentation of Leigh Syndrome Associated with Novel NDUFS1 Mutation
Na Hyun LEE ; Do-Hoon KIM ; Jun Chul BYUN
Keimyung Medical Journal 2023;42(2):114-117
Leigh syndrome is a rare progressive neurodegenerative mitochondrial disorder. Over 75 pathogenic mutations have been identified in both the mitochondrial and nuclear genomes. Leigh syndrome can be diagnosed based on clinical manifestations, physical and biochemical examinations, and brain magnetic resonance imaging results. Patients with Leigh syndrome classically present in early childhood with developmental regression, ataxia, and hypotonia with subsequent respiratory and brainstem dysfunction. However, the clinical course of Leigh syndrome is heterogeneous with significant differences in age of onset, symptom severity and prognosis. Here, we report a case of Leigh syndrome with cardiac arrest as initial presentation, and identified the novel mutation of NDUFS1 gene.
10.Results of Transfer of Cryopreserved Supernumerary Embryos Obtained after Conventional in vitro Fertilization and Intracytoplasmic Sperm Injection (ICSI).
Jeong Wook KIM ; Mi Hyun HAN ; Hye Kyung BYUN ; Jin Hyun JUN ; Il Pyo SON ; Mi Kyoung KOONG ; Eun Chan PAIK ; Inn Soo KANG ; Ho Joon LEE
Korean Journal of Fertility and Sterility 1997;24(1):111-118
Intracytoplasmic sperm injection (ICSI) recently has been utilized widely as the most successful technique to overcome the unfertilization problem in cases of severe male infertility in couples who could not be treated by conventional IVF. Recently, indications of ICSI have been extended further and more fertilized oocytes become available. Thus, it is necessary to examine the efficiency of freezing the surplus embryos obtained from ICSI. We compared the survival rate and the future outcome of cryopreserved embryos obtained either after conventional IVF or ICSI during the same period. After ICSI or IVF, five best-quality embryos from each patient were transferred in the stimulation cycle and the surplus pronuclear (PN) stage oocytes or multicellular embryos were cryopreserved by slow freezing protocol with 1,2-propanediol (PROH) as a cryoprotectant.4 total of 792 embryos from ICSI trial were thawed and 65.2% (516/792) survived. The survival rates of PN stage oocyte, multicellular embryo and PN + multicellular embryo were 63.5%, 68.2%, 64.0%, respectively. After 111 transfers, 34 pregnancies were achieved, corresponding to a clinical pregnancy rate of 30.6% per transfers. We thawed 1033 embryos from IVF trials and 57.5% (594/1033) survived. In IVF cycle, the survival rates of PN stage oocyte, multicellular embryo and PN + multicellular embryo were 58.2%, 65.2%, 40.2%, respectively. Thirty eight clinical pregnancies were established after 134 transfers, corresponding to a pregnancy rate of 28.4% per transfer The cleavage rate of thawed PN stage oocytes from ICSI trial (61.3%) was significantly higher than those from conventional IVF (53.4%). The developmental rates of good embryo (> or = grade II) in thawed PN stage oocytes obtained from conventional IVF and ICSI were 63% and 65%, respectively. We concluded that PN stage oocytes, multicellular embryos resulting from ICSI procedure can be successfully frozen/thawed with reasonable clinical pregnancy rates comparable to those of IVF.
Embryonic Structures*
;
Family Characteristics
;
Fertilization in Vitro*
;
Freezing
;
Humans
;
Infertility, Male
;
Male
;
Oocytes
;
Pregnancy
;
Pregnancy Rate
;
Propylene Glycol
;
Sperm Injections, Intracytoplasmic*
;
Survival Rate