Journal of Yeungnam Medical Science

Byung Yon Choi

8 Articles

Atypical Cerebellar Medulloblastoma Originating from Tentorium: Case Report.: Seong Ho Kim, Chang Hwan Kim, Oh Lyong Kim, Chul Hoon Chang, Sang Woo Kim, Byung Yon Choi, Soo Ho Cho, Jeong Ok Hah; Yeungnam Univ J Med. 2007;24(2):311-314. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2.311

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The extraaxial presentation of a medulloblastoma is rare. This article describes the case of a 12-year-old boy who presented with severe headache, nausea, and vomiting. The tumor developed in the left tentorium; it was misdiagnosed as a meningioma based on the radiology examination. We review the literature and discuss the atypical presentation of medulloblastoma.

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New Developments in the Pathogenesis, Therapeutic Targeting, and Treatment of Pediatric Medulloblastoma
Francia Y. Fang, Jared S. Rosenblum, Winson S. Ho, John D. Heiss
Cancers.2022; 14(9): 2285. CrossRef

A Case of Desmoplastic Infantile Ganglioglioma.: Kwang Chul Song, Seong Ho Kim, Jang Ho Bae, Oh Ryong Kim, Byung Yon Choi, Soo Ho Cho, Dong Seok Kim; Yeungnam Univ J Med. 1997;14(2):451-458. Published online December 31, 1997; DOI: https://doi.org/10.12701/yujm.1997.14.2.451

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Abstract PDF: The desmoplastic infantile ganglioglioma is very rare cerebral tumor. It has been known to be characterized by its voluminious size, intense desmoplasia and the frequent presence of astrocytic and ganglioglionic differentiation. Also, It is usually presented in infantile period and predilected in the frontal and parietal lobes. We treated a huge desmoplastic infantile ganglioglioma(8?7?6cm) on the right frontotemporo-parietal area with only gross total resection. It includes solid mass & several cysts and shows the areas of the proliferation of spindle cells exhibiting storiform pattern in dense desmoplastic stroma and the areas composed of spindle shaped glial component.

Subependymal Giant Cell Astrocytoma in the tuberous Sclerosis.: Jin Han Park, Seong Ho Kim, Dong Ro Han, Jang Ho Bae, Sam Kyu Ko, Oh Lyong Kim, Byung Yon Choi, Soo Ho Cho; Yeungnam Univ J Med. 1994;11(2):221-229. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.221

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Abstract PDF: Tuberous sclerosis is reported rarely and is associated with systemic lesions including central nervous system, skin, heart, eye and kidney. Approximately 5-15% of individuals with tuberous sclerosis will develop brain neoplasia, almost invariably subependymal giant-cell astrocytoma (SGCA). We experienced a case of SGCA with tuberous sclerosis operated by the transcallosal approach and report with literature review.

The Effects of Microwave Irradiated on Rabbit's ICP.: Jin Han Park, Seong Ho Kim, Dong Ro Han, Jang Ho Bae, Oh Lyong Kim, Byung Yon Choi, Soo Ho Cho, Joon Ha Lee; Yeungnam Univ J Med. 1994;11(2):213-220. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.213

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Abstract PDF: Damages on central nervous system induced by the exposure of microwave. However, the effects of microwave on ICP are not studied yet. The ICP affected by the condition of the condition of the brain has an significant effect on vital sign. So we investigated the changes of ICP of the rabbits after exposure. Twenty four rabbits were divided into 3 groups depending on the amount of exposure to microwave. One group was composed with 8 rabbits were exposed to microwave for 10 miniutes. Other were composed to microwave for 20 miniutes, 30 miniures, respectively. Intracranial pressure on each group were measured by subdural type ICP monitoring catheter immediately, first day, 3rd day, 5th day and 7th day after exposure of microwave. Results indicates that intracranial pressure of rabbits are not affected with statistical significance by exposure of microwave.

Surgical Managements of Ischemic Stroke.: Byung Yon Choi; Yeungnam Univ J Med. 1994;11(2):202-212. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.202

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Abstract PDF: No abstract available.

Effects of the Selective Management for Increased Intracranial Pressure with Obstruction of Internal Carotid Artery in Rabbits.: Bum Dae Kim, Kyoung Yeob Lee, Seong Ho Kim, Dong Ro Han, Jang Ho Bae, Oh Lyong Kim, Byung Yon Choi, Soo Ho Cho, Hyoun Jin Shin; Yeungnam Univ J Med. 1994;11(1):167-180. Published online June 30, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.1.167

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Abstract PDF: In order to inquire the most-effective management of increased intracranial pressure(ICP), mannitol, steroid and hyperventilation were used in rabbits after ligation or non-ligation of the carotid artery. Mannitol was more effective than steroid and hyperventilation in the degree of the reduction of ICP. The intracranial pressure was decreased 43~45% for 25~30 minutes after injection of mannitol. Steroid was less effective than mannitol in the degree of the reduction of ICP. But the time of reduction of ICP was longer, that is, the degree of reduction was 24~60 minutes after injection of steroid. Hyperventilation is effective in the initial time only, for 10 minutes after hyperventilation. The degree of ICP reduction was 13.5~16.7 % for 10 minutes after hyperventilation. The combined group, that is three kinds of mangenent were used, is the most effective treatment to reduce ICP of ICP. The degree of the reduction of ICP was 42.1~49.3% for 20 minutes, 47.7~52.5% for 30minnutes. There was no significant difference between and non-ligation group.

A BRW Stereotaxic Biopsy of Brain Stem Glioma.: Seung Chan Beak, Byung Yon Choi, Choong Bae Moon, Yong Chul Chi, Soo Ho Cho; Yeungnam Univ J Med. 1986;3(1):343-349. Published online December 31, 1986; DOI: https://doi.org/10.12701/yujm.1986.3.1.343

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Abstract PDF: Histopathological diagnosis of brain stem glioma should be performed for the purpose of the determination of its management and clinical course, but its surgical biopsy has been followed by high mortality and morbidity. We performed the tissue sampling for histological examination with BRW stereotaxic system under local anesthesia successfully.

Clinical Analysis of C.N.S. Cysticercosis.: Soo Ho Cho, Choong Bae Moon, Byung Yon Choi; Yeungnam Univ J Med. 1984;1(1):25-34. Published online December 31, 1984; DOI: https://doi.org/10.12701/yujm.1984.1.1.25

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Abstract PDF: During last 10 years we experienced 25 cases of C.N.S. cysticercosis. Now clinical analysis and evaluation of our cases were made and the results are followings; 1. Prevalence in man and women are nearly same and about 70% of cases are distributed between 20-50 years old. 2. According to Nieto's classification, mostly are ventricular (44%) and parenchymal type (36%). 3. Clinical manifestations were IICP (92%), focal neurological deficits (68%), seizure (48%), altered mental status (36%) and others listed on table 7. 4. In ventricular type, IICP and cerebellar dysfunction signs were predominated but seizure and focal neurological deficits were commonly seen in parenchymal type. 5. Subcutaneous cysticercus nodules were palpated in 32% of cases. 6. Positive stool ova was observed in 29% of cases. 7. Radiologic studies revealed as followings: 16% of cases showed abnormal findings on plain film, 84% on angiography, 94% on ventriculography and 100% on computed tomography and myelography. Computed tomography looks like most helpful diagnostic method for C.N.S. cysticercosis, they usually revealed lucent cystic lesion, hydrocephalic findings and contrast enhancement. 8. Suboccipital craniectomy, craniotomy with removal of parenchymal cyst or laminectomy were done according to location and types of lesion. 72% of operated cases revealed good results and mortality was 4% of cases.

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