1.Gallbladder carcinoma: Regional lymph nodes metastases on CT scan.
Whi Youl CHO ; Sang Keun YOON ; Joong Wha PARK ; Young Ju KIM ; Ki Joon SUNG
Journal of the Korean Radiological Society 1993;29(3):444-447
CT scans of 23 patients with gallbladder carcinoma were retropectively reviewed to determine the incidence of lymphatic spread and to access the pattern of regional lymph node metastases. The lymphatic spread were noted in 74%(17/23). The involved patterns of regional lymph node metastases were nodes of porta hepatis 65%, portocaval nodes 41%, superior pancreaticoduodenal nodes 47%, posterior pancreaticoduodenal nodes 59%, nodes around the celiac trunk 35%, nodes around the superior mesenteric artery 29% and paraaortic nodes 35%. The findings suggested that the pattern of regional lumph node metastases in gallbladder carcinoma occurred along the normal lymphatic pathway of the gallbladder.
Gallbladder*
;
Humans
;
Incidence
;
Lymph Nodes*
;
Mesenteric Artery, Superior
;
Neoplasm Metastasis*
;
Tomography, X-Ray Computed*
2.Gallbladder carcinoma: Regional lymph nodes metastases on CT scan.
Whi Youl CHO ; Sang Keun YOON ; Joong Wha PARK ; Young Ju KIM ; Ki Joon SUNG
Journal of the Korean Radiological Society 1993;29(3):444-447
CT scans of 23 patients with gallbladder carcinoma were retropectively reviewed to determine the incidence of lymphatic spread and to access the pattern of regional lymph node metastases. The lymphatic spread were noted in 74%(17/23). The involved patterns of regional lymph node metastases were nodes of porta hepatis 65%, portocaval nodes 41%, superior pancreaticoduodenal nodes 47%, posterior pancreaticoduodenal nodes 59%, nodes around the celiac trunk 35%, nodes around the superior mesenteric artery 29% and paraaortic nodes 35%. The findings suggested that the pattern of regional lumph node metastases in gallbladder carcinoma occurred along the normal lymphatic pathway of the gallbladder.
Gallbladder*
;
Humans
;
Incidence
;
Lymph Nodes*
;
Mesenteric Artery, Superior
;
Neoplasm Metastasis*
;
Tomography, X-Ray Computed*
3.Intracerebral Tension Pneumatocele as a Complication of Fronto-ethmoid sinus Osteoma: Case Report.
Sang Youl YOON ; Chang Gu KANG ; Dong Hee KIM ; Dae Jo KIM
Journal of Korean Neurosurgical Society 1989;18(5):790-794
A case of intracerebral tension pneumatocele as a complication of an Osteoma in the Fronto-ethmoid sinus is reported. The commonest causes of intracranial air are head trauma and neurosurgical procedures. Less common etiologies include infection due to gas-forming organisms, mucoceles, tumors(e.g. osteomas carcinomas pituitary adenomas peripheral nerue tumors) and congenital neurenteric cysts or dural defects. Computed tomography permitted rapid diagnosis including localization of the air thus facilitating prompt treatment.
Craniocerebral Trauma
;
Diagnosis
;
Mucocele
;
Neural Tube Defects
;
Neurosurgical Procedures
;
Osteoma*
;
Pituitary Neoplasms
4.A Clinical Analysis of Metastatic Brain Tumors.
Sang Youl YOON ; Chang Gu KANG ; Dong Hee KIM ; Dae Jo KIM
Journal of Korean Neurosurgical Society 1989;18(5):680-686
We have studied 1927 cases of primary tumor patients, who were admitted, managed and registered at Cancer Center of Maryknoll Hospital from Nov. 1985 to Jun. 1988. Of these, 50 cases were metastasized to central nervous systems, and the cases of brain metastases were 31 cases. This report presents an analysis of 31 cases of metastatic brain tumors. The results are as followings: 1) The sexes were represented with 20 males and 11 females. In 20 cases(65%), the metastases occurred between the 6th decade and 7th decade. 2) The most frequent anatomical site of brain metastases was brain parenchyme(67.7%). 3) The most frequent site of primary malignancy was lung(45.2%), and the next order was choriocarcinoma of the uterus. 4) The clinical symptoms and signs of metastatic brain tumors were headache(87%), nausea, vomiting(35.5%) orderly. 5) In C-T scan findings, the metastatic brain tumors presented hyperdense area at 50% of cases before contrast enhancement, and were enhanced nearly almost of cases. 6) In cases which could be treated surgical procedure, radiation and chemotherapy seemed to improve the prognosis.
Brain Neoplasms*
;
Brain*
;
Central Nervous System
;
Choriocarcinoma
;
Drug Therapy
;
Female
;
Humans
;
Male
;
Nausea
;
Neoplasm Metastasis
;
Pregnancy
;
Prognosis
;
Uterus
6.Semiquantitative Food Frequency Method as an Epidemiological tool in a Rural community, Korea.
Mi Kyung KIM ; Bo Youl CHOI ; Young Jeon SHIN ; Yoon Ok AHN ; Sang Sun LEE ; Young Sun CHO
Korean Journal of Epidemiology 1994;16(1):54-65
This study was performed to evaluate the semiquantitative food frequency questionnaire used to obtain information about. dietary patterns of adults in a rural county, Yang-pyeung Gun. The study population was 1311 adults aged 17~85 years. And well-trained interviewers interviewed subjects in 1990, 1992, 1993. The results are as follows. 1) Nutrients intake calculated from each questionnaire showed significant difference, because the number of question was not same(fifty questions in 1990, eighty questions in 1992, 1993). 2) Estimated nutrients intake from separate food items was significantly different when food items are combined in one question. 3) The agreement of nutrients intake level except vit C were high when the subjects are cross-classified by their ranks on the nutrients intake level from items in both questionnaires and on the nutrient intake level from items in each questionnaire. 4) And analysing this study data by multiple stepwise regression, we selected twenty seven food items whic could explained over 85% of inter-individual variation of nutrients(energy, carbohydrate, fat, protein, vit A, vit B1, vit B2, vit C, Ca). From above results, we suggested that it is neccessary to standardize questionnaire and perform validity studies.
Adult
;
Humans
;
Korea*
;
Rural Population*
;
Surveys and Questionnaires
7.Traumatic Brain Injury in Children under Age 24 Months: Analysis of Demographic Data, Risk Factors, and Outcomes of Post-traumatic Seizure.
Sang Youl YOON ; Yeon Ju CHOI ; Seong Hyun PARK ; Jeong Hyun HWANG ; Sung Kyoo HWANG
Journal of Korean Neurosurgical Society 2017;60(5):584-590
OBJECTIVE: Traumatic brain injury (TBI) in children under age 24 months has characteristic features because the brain at this age is rapidly growing and sutures are opened. Moreover, children this age are completely dependent on their parents. We analyzed the demographic data and risk factors for outcomes in TBI patients in this age group to elucidate their clinical characteristics. METHODS: We retrospectively reviewed the medical records and radiological films of children under 24 months who were admitted to Kyungpook National University Hospital from January 2004 to December 2013 for TBI. Specifically, we analyzed age, cause of injury, initial Glasgow coma scale (GCS) score, radiological diagnosis, seizure, hydrocephalus, subdural hygroma, and Glasgow outcome scale (GOS) score, and we divided outcomes into good (GOS 4–5) or poor (GOS 1–3). We identified the risk factors for post-traumatic seizure (PTS) and outcomes using univariate and multivariate analyses. RESULTS: The total number of patients was 60, 39 males and 21 females. Most common age group was between 0 to 5 months, and the median age was 6 months. Falls were the most common cause of injury (n=29, 48.3%); among them, 15 were falls from household furniture such as beds and chairs. Ten patients (16.7%) developed PTS, nine in one week; thirty-seven patients (61.7%) had skull fractures. Forty-eight patients had initial GCS scores of 13–15, 8 had scores of 12–8, and 4 had scored 3–7. The diagnoses were as follows: 26 acute subdural hematomas, 8 acute epidural hematomas, 7 focal contusional hemorrhages, 13 subdural hygromas, and 4 traumatic intracerebral hematomas larger than 2 cm in diameter. Among them, two patients underwent craniotomy for hematoma removal. Four patients were victims of child abuse, and all of them had PTS. Fifty-five patients improved to good-to-moderate disability. Child abuse, acute subdural hematoma, and subdural hygroma were risk factors for PTS in univariate analyses. Multivariate analysis found that the salient risk factor for a poor outcome was initial GCS on admission. CONCLUSION: The most common cause of traumatic head injury in individuals aged less than 24 months was falls, especially from household furniture. Child abuse, moderate to severe TBI, acute subdural hematoma, and subdural hygroma were risk factors for PTS. Most of the patients recovered with good outcomes, and the risk factor for a poor outcome was initial mental status.
Accidental Falls
;
Brain
;
Brain Injuries*
;
Child Abuse
;
Child*
;
Contusions
;
Craniocerebral Trauma
;
Craniotomy
;
Demography
;
Diagnosis
;
Family Characteristics
;
Female
;
Glasgow Coma Scale
;
Glasgow Outcome Scale
;
Gyeongsangbuk-do
;
Hematoma
;
Hematoma, Subdural, Acute
;
Hemorrhage
;
Humans
;
Hydrocephalus
;
Infant
;
Interior Design and Furnishings
;
Male
;
Medical Records
;
Multivariate Analysis
;
Parents
;
Retrospective Studies
;
Risk Factors*
;
Seizures*
;
Skull Fractures
;
Subdural Effusion
;
Sutures
8.Analysis of p53 and Retinoblasoma(Rb) Gene Polymorphisms in Relation to Lung Cancer in Koreans.
Kyung Sang LEE ; Jang Won SOHN ; Suck Chul YANG ; Ho Joo YOON ; Dong Ho SHIN ; Sung Soo PARK ; Jung Hee LEE ; Chun Geun LEE ; Youl Hee CHO
Tuberculosis and Respiratory Diseases 1997;44(3):534-546
BACKGROUND: The p53 and retinoblastoma(Rb) tumor suppressor genes are associated with the pathogenesis of several types of human cancer. Substantial. proportion of the primary lung cancers or cell lines have been reported to have the p53 and/or the Rb gene mutations. But so far there is no report on the analysis of the Rb gene polymorphism as one of the genetic susceptibility marker. This study was undertaken to establish the gene frequencies of the polymorphic genotypes of the p53 and Rb genes in Koreans to evaluate the possible involvement of these genotypes as a risk factor of lung cancer. METHODS: In this study 145 controls without previous and present tumor history and 128 lung cancer patients were subjected to analysis The two intragenic polymorphisms of the p53 gene(exon 4/AccII, intron 6/MspI) and one intron 17/XbaI polymorphism of the Rb gene were analysed by the method of polymersae chain react lion-restriction fragment length polymorphisms(PCR-RFLPS). The genotype of the intron 3/16 bp repeat polymorphism of p53 was determined by PCR and direct gel electrophoresis. RESULTS: There were no significant differences in the genotype distributions of the p53 gene between lung cart cert patients and controls. But heterozygotes(Arg/Pro) of the exon 4/AcclII polymorphisms were slightly over-represented than controls, especially in the Kreyberg type I cancer, which was known 13 be associated with smoking. The intron 3/16 bp duplication and the intron 6/MspI polymorphisms were in complete linkage disequilibrium. About 95% of the individuals were homozygotes of the common alleles both in the 16 duplication and MspI polymorphisms, and no differences were deteced in the genotype distributions between lung cancer patients and controls. Overall genotype distributions of the Rb gene polymorphisms between lung cancer patients and controls were not significantly different However, the genotype distributions in the Kreyberg type I cancer were significantly different from those of controls(p=0.0297) or adenocarcinomas(p=0.0008). It was noticeable that 73.4% of the patients with adenocarcinomas were heterozygotes(r1/r2) whereas 39.2% of the Kreyberg type I cancer were heterozygous at this polymorphisms. In the lung cancer patients, significant differences were a]so noted between the high dose smokers and low dose smokers including non-smokers(p=0.0258). The relative risk to Kreyberg type I cancer was significantly reduced in the individuals with the genotype of r1/r2(odds ratio=0.46, 95%C.I.=0.25-0.86, p=0.0124). The combined genotype distribution of the exon 4/AccII of the p53 and the intron 17 Rb gene polymorphisms in Kreyberg type I cancers were significantly different from dose of controls or adenocarcinomas. The highest odds ratio were observed in the individuals with the genotypes of Arg/pro and r2/r2(odds ratio=1.97, 95%C.I.=0.84-4.59) and lowest one was in the patients with Arg/Arg, r1/r2 genotype(odds ratio=0.54, 95%C.I.=0.25-1.14). CONCLUSION: The p53 and the Rb gene polymorphisms modulate the risk of smoking induced lung cancer development in Koreans. However, the exact mechanism of risk modulation by these polymorphism remains to be determined. For more discrete clarification of associations between specific genotypes and lung cancer risk, the evaluations of these polymorphisms in other ethnics and more number of patients will be needed.
Adenocarcinoma
;
Alleles
;
Cell Line
;
Electrophoresis
;
Exons
;
Gene Frequency
;
Genes, p53
;
Genes, Retinoblastoma
;
Genes, Tumor Suppressor
;
Genetic Predisposition to Disease
;
Genotype
;
Homozygote
;
Humans
;
Introns
;
Linkage Disequilibrium
;
Lung Neoplasms*
;
Lung*
;
Odds Ratio
;
Polymerase Chain Reaction
;
Risk Factors
;
Smoke
;
Smoking
9.A Study on the Applications of super-Impose ID Image System.
Hyun Gyo SONG ; Sang Ook YOON ; Ha Jin KIM ; Chong Youl KIM ; Min Goo KANG
Journal of Korean Society of Medical Informatics 1998;4(1):97-103
In this paper, a new superimposition scheme using a computer vision system was proposed with pairs of skull and ante-mortem photographs, which were already identified through other tests and DNA fingerprints at the Korea National Institute of Scientific Investigation. In this computer vision system, an unidentified skull was caught by video-camcoder with the MPEG and the other ante-mortem photograph was scanned by scanner. These two images were processed and superimposed using pixel processing. This recognition of individual identifications by anatomical references can be performed on the two superimposed images for many big cases like as Guam KAL accident in 1997.
Artificial Intelligence
;
DNA Fingerprinting
;
Guam
;
Korea
;
Skull
10.Multiple Cerebral Infarctions due to Unilateral Traumatic Vertebral Artery Dissection after Cervical Fractures.
Sang Youl YOON ; Seong Hyun PARK ; Jeong Hyun HWANG ; Sung Kyoo HWANG
Korean Journal of Neurotrauma 2016;12(1):34-37
We report a case of multiple symptomatic cerebral infarctions from a traumatic vertebral artery dissection (VAD) after cervical fractures. A 73-year-old man was admitted with stuporous mentality and left hemiparesis after a motor-vehicle accident. A brain computed tomography (CT) scan at admission showed a traumatic subarachnoid hemorrhage on the left parietal lobe. A cervical CT scan showed left lateral mass fractures on C2, C5, and C6, involving the transverse foramen. Cervical spine magnetic resonance imaging (MRI) revealed loss of signal void on the left vertebral artery. Neck CT angiography showed left VAD starting at the C5 level. Brain MRI revealed acute, multiple cerebral infarctions involving the pons, midbrain, thalamus, corpus callosum, and parietal and frontal lobes on diffusion weighted images. The patient was treated conservatively at the intensive care unit in the acute stage to prevent extent of stroke. Aspirin was started for antiplatelet therapy in the chronic stage. The possibility of symptomatic cerebral infarctions due to traumatic VAD following cervical fracture should be considered.
Aged
;
Angiography
;
Aspirin
;
Brain
;
Cerebral Infarction*
;
Cervical Vertebrae
;
Corpus Callosum
;
Diffusion
;
Female
;
Frontal Lobe
;
Humans
;
Intensive Care Units
;
Magnetic Resonance Imaging
;
Mesencephalon
;
Neck
;
Paresis
;
Parietal Lobe
;
Pons
;
Rabeprazole
;
Spinal Fractures
;
Spine
;
Stroke
;
Stupor
;
Subarachnoid Hemorrhage, Traumatic
;
Thalamus
;
Tomography, X-Ray Computed
;
Vertebral Artery
;
Vertebral Artery Dissection*