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하동원 ( Dong Won Ha ),김세혁 ( Se Hyuk Kim ),신용삼 ( Yong Sam Shin ),안영환 ( Young Hwan Ahn ),윤수한 ( Soo Han Yoon ),조기홍 ( Ki Hong Cho ),조경기 ( Kyung Gi Cho ),임현이 ( Hyun Yee Lim ) 대한뇌종양학회·대한신경종양학회·대한소아뇌종양학회 2005 대한뇌종양학회지 Vol.4 No.2
We report a case of microcystic meningioma which showed unusual radiological findings resembling malignant tumor. A 44-year-old woman presented with generalized tonic clonic seizure and right hemiparesis. Computed tomography and magnetic resonance images showed a mass at left frontal, parasagittal area with septa-like enhancement and surrounding edema. 201Tl SPECT showed focal uptake in mass lesion which suggests the malignant tumor. The histopathological findings of this tumor revealed to be a microcystic meningioma and Ki-67 labeling index was 3.8. Although the mass was a subtype of meningioma, it showed a early recurrence 10 months after grossly total resection because of high proliferative index. We suggest that the biological behaviour in addition to morphologic classification should be considered in the management of benign brain tumor, such as meningioma.
일측성 망막아세포종과 동반된 이소성 정중선 원시신경외배엽종 - 증례보고 -
김형석,조경기,조기홍,윤수한,안영민,안영환,심철,Kim, Hyung Seok,Cho, Kyung Gi,Cho, Ki Hong,Yoon, Soo Han,Ahn, Young Min,Ahn, Young Hwan,Shim, Chul 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.5
Trilateral retinoblastoma is a syndrome involving midline intracranial malignancies in children with the heritable form of retinoblastoma. It is rare and usually lethal in spite of aggressive treatments. We report a case of trilateral retinoblastoma with review of the literature to gain further insight into this uncommon disease.
두개강내 내배엽성 동종양(Endodermal Sinus Tumor)
임용철,조경기,이성운,박한준,신용삼,윤수한,조기홍,Lim, Yong Chull,Cho, Kyung Gi,Lee, Seong Un,Park, Han Jun,Shin, Yong Sam,Yun, Soo Han,Cho, Ki Hong 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.12
Objective : Endodermal sinus tumor or yolk sac tumor is an uncommon malignant germ-cell neoplasm. This tumor was originally described as a germ cell tumor of the ovary or the testis. Intracranial endodermal sinus tumor is extremely rare and usually develop in the pineal or suprasellar regions. The authors evaluated the effect of adjuvant therapy(chemotherapy combined with radiotherapy) and radical removal of intracranial endodermal sinus tumors. Material and Methods : Between 1996 and 2001, four patients of intracranial endodermal sinus tumor were diagnosed with tumor marker(AFP) and biopsy. Three patients were treated with surgical removal and chemotherapy with cisplatin($20mg/m^2$), etoposide($100mg/m^2$) and bleomycin($15mg/m^2$) as well as external beam radiation therapy. We compared the management problems for these tumors. Result : In all three patients the tumor size and the level of tumor marker decresed during initial adjuvant therapy. However, Tumors showed regrowth with elevated AFP of serum and CSF possibly related to delayed chemotherapeutic treatment or inadequate administration of chemotherapeutic drugs due to severe bone marrow suppression. An additional chemotherapy and external radiation therapy were given, but tumors could not be controlled with leptomeningeal seeding. Conclusion : Radiotherapy is considered to be less effective. The combination chemotherapy with PVB(cisplatin, vinblastine, bleomycine) or PE(cisplatin, etoposide) is considered to be value in prolongation of the survival rate. But the role of chemotherapy in this tumor has not yet been clarified due to bone marrow suppression and drug resistance. Further study with large series of this tumor is necessary to establish the optimal management.
수두증을 동반한 거대두개증 환아에서 격자술을 이용한 One Stage Reduction Cranioplasty - 증례보고 -
원근수,윤수한,신용삼,조기홍,조경기,Weon, Keun Soo,Yoon, Soo Han,Shin, Yong Sam,Cho, Ki Hong,Cho, Kyung Gi 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1
Reduction cranioplasty is one of the treatment modality among many treatment options for macrocephaly with hydrocephalus. The most previous techniques of reduction cranioplasty have some disadvantages such as difficult airway maintenance, pressure sore due to modified prone position, severe venous infarct due to obstruction of venous blood flow and large amount of bleeding from the dissection of superior sagittal sinus to obtain bone fragment needed. A 28-month-old girl had extreme macrocephaly. She couldn't control head rotation and keep sitting position. The operation was performed at supine position with adequate exposure of entire calvarium and the hinge was made in occipital bone fragment that covered posterior part of superior sagittal sinus. Bleeding volume and the other complications were decreased and acceptable reduction was achieved with this method.
김지헌 ( Ji Heon Kim ),조경기 ( Kyung Gi Cho ),문봉기 ( Bong Ki Moon ),김혁준 ( Hyeok Joon Kim ),정영선 ( Young Sun Chung ),신용삼 ( Yong Sam Shin ),안영환 ( Young Hwan Ahn ),윤수한 ( Soo Han Yoon ),조기홍 ( Ki Hong Cho ) 대한뇌종양학회 2002 대한뇌종양학회지 Vol.1 No.2
Awake craniotomy is a kind of operation which can be used in the case of the mass adjacent eloquent area. In this report, we explain the usefulness of awake craniotomy in the case of declining lung functions as well as the eloquent area. Methods:Awake craniotomy has been performed on fifteen from July 1999 to May 2002. Perioperative neurological state and their changes were evaluated in all patients. Results:The 15 patients who had undergone the surgery were satisfied with the results of their operations. The mean ages were 50.2. Male to female ration was 8:7. Tumors were located in eloquent area such as motor cortex in 8 patients, speech area in 4 and thalamus in 1. Mean period of post ICU staying was 32.53 hours, mortality rate was 0% and two patients developed new neurological deficit. Also, three patients who were inadequate to general anesthesia because of old age and declined lung function have excellent results. We can reduce neurological deficit and make ICU care time shorterper with awake craniotomy. Conclusion:Awake craniotomy is useful operation in the cases of the mass located in the eloquent area and inadequacy to general anesthesia.
Threaded Fusion Cage(TFC)를 이용한 최소 침습적 요추체 후방융합술
김혁준,조기홍,신용삼,윤수한,조경기,Kim, Hyeok Joon,Cho, Ki Hong,Shin, Yong Sam,Yoon, Soo Han,Cho, Kyung Gi 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2
Objective : In general, to perform posterior lumbar interbody fusion(PLIF), it has been used more invasive procedure than simple discectomy. However we try to perform PLIF with TFC with smaller invasion almost same as in simple discectomy. This study is about its procedure and clinical results. Materials and Methods : The authors retrospectively analyzed 43 cases of minimally invasive PLIF with TFC from July 1998 to May 2000. Operative procedure, operative complication, change of disc height, blood loss, ambulation time, hospitalization period, clinical success rate, and bony fusion rate were analyzed. Results : 40 patients were capable to walk on the 2nd day of the post-operation. The average hospitalization period is 5.6 days. The average blood loss was 0.19L/level with no transfusion or wound drainage. The height of disc changed from 8.84mm to 13.54mm. Clinical success rate is 95% when evaluated by the Prolo's scale. The complication was delayed wound infection(2) and transient paresthesis(1). The bony fusion was shown in 17 patients (94.4%) out of 18 patients who passed one year. Conclusion : As a result of minimally invasive PLIF, pain was decreased and early ambulation and short hospitalization was possible. Complication was similar or lower than other studies, and the bony fusion rate and clinical success rate were also similar during follow-up.
심숙영 ( Sook Young Sim ),조경기 ( Kyung Gi Cho ),임연희 ( Yeon Hee Lim ),김세혁 ( Se Hyuk Kim ),신용삼 ( Yong Sam Shin ),안영환 ( Young Hwan Ahn ),윤수한 ( Soo Han Yoon ),조기홍 ( Ki Hong Cho ) 대한뇌종양학회 2004 대한뇌종양학회지 Vol.3 No.2
Objective:We analyzed the headache characteristics in patients with a brain tumor and its correlation with the grade of the tumor. Methods:Brain tumor patients with and without headaches were recruited. Sex, age, combined symptoms, neurological findings, and radiological characteristics were reviewed in both groups. Results:Sixty-nine patients(46 with and 23 without headache) comprised our study population. Intracranial pressure (ICP) symptoms were more prevalent in the headache group compared to the non-headache group(p=0.012). However, no other clinical differences were noted between the two groups. The prevalence of headache was increased in patients with metastatic brain tumor than primary brain tumor but there was no statistical significance. The characteristics of the headache were non-specific and could not be differentiated between malignant and benign brain tumors. Conclusion:Headache in brain tumor patients present in a non-specific characteristic. In patients with symptoms suggestive of an increased ICP or malignancy from another organ, further imaging may be warranted.
김혁준,조기홍,신용삼,윤수한,조경기,Kim, Hyeok Joon,Cho, Ki Hong,Shin, Yong Sam,Yoon, Soo Han,Cho, Kyung Gi 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2
Malignant peripheral nerve sheath tumor(MPNST, primary malignant schwannoma) within the spinal canal is very rare. The prognosis of MPNST in the spinal canal is very poor due to the tendency of perineural spread, dissemination throughout subarachnoid space and local recurrance. This report details the authors' experience on the case of primary malignant spinal schwannoma with review of the literatures and other studies.
GFP를 이용하여 in-vivo에서 추적한 Bad와 Bcl-XL의 Mitochondria 이동
윤수한,김진영,박승우,안영환,안영민,조기홍,조경기,Yoon, Soo Han,Kim, Jin Young,Park, Seung Woo,Ahn, Young Hwan,Ahn, Young Min,Cho, Ki Hong,Cho, Kyung Gi 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.10
Objectives : The subcellular locations of Bad, Bid, Bax and Bcl-XL change during apoptosis and this change is important for the regulation of cell death. The purpose this study was to elucidate binding of Bad with Bcl-XL in vivo Methods : We mads Bad with Green Fluorescent Protein(GFP) using PCR method. We transfected and overexpressed GFP-Bad with or without Bcl-XL cotransfection in living COS-7 cell. Results : Bad and Bcl- XL bind one another in healthy living cells and this association controled mitochondrial docking. In the absence of Bad-XL, Bad was mainly cytosolic and partially bound to mitochondria. Upon coexpression of Bad and Bcl-XL, most of Bad translocated to mitochondria. These should suggest that Bad binds to the mitochondrial and cytoplasmic forms of Bcl-XL and Bad bound to cytoplasmic Bcl-XL translocates to mitochondria. These in vivo findings confirm that Bad make a complexes with Bcl- XL and cause mitochondrial translocation of Bad-Bcl-XL complex.