1.Serial Change of the Bone Density in Distraction Osteogenesis in Long Bone Lengthening in Lower Extremity - by the Pixel Value in PACS.
Jong Sup SHIM ; Won Hwan OH ; Jai Gon SEO ; Min Jong PARK ; Kye Young HAN
The Journal of the Korean Orthopaedic Association 1998;33(3):575-582
We investigate the serial change of the bone density of the lengthening sites in distraction osteogenesis in long bone lengthening of the lower extremity by measuring the pixel value of the PACS(Picture Archiving Communication System). The purpose of this study was to find the clinical implication of the pixel value in PACS in the distraction osteogenesis. The number of the distraction sites were 22 in tibia and 16 in femur. The average distraction length was 4.5cm ranged between 2.1cm and 7.0cm in femur, 4.1cm ranged hetween 1.9cm and 6.8cm in tibia. When the image were sent to the PACS workstations, they were directly interfaced to the workstation without any processing. The absolute and the relati ve pixel values of cortical bones of the original and the lengthening sites repr sented in workstation of PACS were obtained by average value measuring 3 times by 3 different persons. The average absoiute pixel value of the original cortical bone near distraction site was not significantly changed, maintaining 575+/-6 in femur, and 570+/-7 in tibia. The absolute pixel vaIues in AP and lateral view were not significantly changed until 6 week/cm, but rapidly increased after 7 week/cm hoth in the tibia and the femur. The relative pixel value of the lengthening sites were more than 95% in three of the four cortices at the time of the removal of the external fixators. in conclusion, the pixel value of the PACS can be a rapid, simple and easy method for detection of the change of the bone density in distraction osteogenesis.
Bone Density*
;
Bone Lengthening*
;
External Fixators
;
Femur
;
Humans
;
Lower Extremity*
;
Osteogenesis, Distraction*
;
Tibia
2.Teratoma of the Pleura: A Case Report.
Oh Gon KIM ; Suk Jae LEE ; Jong Myun HONG
The Korean Journal of Thoracic and Cardiovascular Surgery 1998;31(11):1116-1118
Intrathoracic teratoma is mainly found on the anterior mediastinum. For teratoma of the pleura, one case was described. We have presented what we believe to be the first report of a teraroma of the pleura, which was mainly composed of neuroglial cells and was accompanied with lymph node metastasis.
Lymph Nodes
;
Mediastinum
;
Neoplasm Metastasis
;
Neuroglia
;
Pleura*
;
Teratoma*
3.6 Cases of Transient Hyperphosphatasemia of Infancy and Early Childhood.
Jong Gon OH ; Dong Hyeon CHOI ; Kyung Eun OH ; Moon Ki CHO ; Chul SOHN
Journal of the Korean Pediatric Society 2000;43(1):105-110
Sometimes physicians and clinical pathologists find very high levels of alkaline phosphatase (ALP) activity in their patients. This condition is associated with transient, marked increase in serum ALP in healthy infants and children. It has also been described in adults. Clinical and biochemical features of transient hyperphosphatasemia in infancy and early childhood are reviewed in six patients that we have studied. The diagnosis is suggested by findings of increased activity of alkaline phosphatase in plasma, typically more than fivefold the upper reference value for adult, in a child under five years of age, without evidence of liver or bone disease. The condition is confirmed by the presence of a characteristic pattern of alkaline phosphatase isoenzymes and by the normalization of enzyme activity in plasma within approximately six months after the original observation. The etiology of the condition and possible mechanism of the elevated ALP is discussed.
Adult
;
Alkaline Phosphatase
;
Bone Diseases
;
Child
;
Diagnosis
;
Humans
;
Infant
;
Isoenzymes
;
Liver
;
Plasma
;
Reference Values
4.A case of entrapped temporal horn of lateral ventricle caused by Pseudomonas stutzeri choroid plexitis.
Nam Gon KIM ; Oh Young KWON ; Ki Jong PARK ; Nack Cheon CHOI ; Byeong Hoon LIM
Journal of the Korean Neurological Association 1997;15(2):421-428
Focal ventricular dilatation of the temporal horn caused by an occlusion of the cerebrospinal fluid pathway at the atrium of the lateral ventricle is a form of non communicating hydrocephalus, and this condition is termed as "entrapment of the temporal horn". The choroid plexus is important central nervous system(CNS) structure, but it is often neglected in pathologic and clinical studies of intracranial diseases. Even though choroid plexitis is very rare, it may be occurred as the resultant of CNS infections and primary choroid plexitis can be associated with bacterial, viral, and parasitic etiologies. Some aspects of the neuroimaging findings of this infection mimick those of a intraventricular neoplasms. The most important neoplasms which should be differentiated, are choroid plexus papilloma and carcinoma. Wherem primary neoplasms of the choroid plexus are well known, but primary infections of the choroid plexus (such as choroid plexitis) are not commonly encountered. Pseudomonas stutzeri infections are especially rare as the causative organism of the choroid plexitis and often have serious underlying disease but generally respond well to treatment with antibiotics. We report a 65-year-old female patient with primary choroid plexitis due to Pseudomonas stutzeri and the findings of her brain computerized tomography and magnetic resonance imaging. In conclusion, our case revealed that choroid plexitis may result in ventricular entrapment and mimick intraventricular tumors. Although it is very rare, when a intraventricular mass was observed in imaging studies and combined with signs and symptoms suggesting CNS infection, choroid plexitis should be considered.
Aged
;
Animals
;
Anti-Bacterial Agents
;
Brain
;
Cerebral Ventricle Neoplasms
;
Cerebrospinal Fluid
;
Choroid Plexus
;
Choroid*
;
Dilatation
;
Female
;
Horns*
;
Humans
;
Hydrocephalus
;
Lateral Ventricles*
;
Magnetic Resonance Imaging
;
Neuroimaging
;
Papilloma, Choroid Plexus
;
Pseudomonas stutzeri*
;
Pseudomonas*
5.The effect of Hydrogen Peroxide and Ascorbic Acid on Proliferation and Morphology of Lens Epithelial Cells.
Jong Hyuck LEE ; Jung Hyub OH ; Jung Gon CHO ; Sug Jae KANG
Journal of the Korean Ophthalmological Society 2002;43(11):2288-2299
PURPOSE: The therapeutic effects of amniotic membrane transplantation (AMT) contain anti-fibrosis, anti-inflammation and facilitation of epithelialization. Thus we investigated whether applying of amniotic membrane (AM) ointment could get the same effect as AMT. METHODS: Alkali burn was induced by applying 6 mm round filter paper which was soaked with 1 N NaOH, onto the central cornea for 60 seconds on both eyes of 10 white rabbits. Then we applied AM ointment on one eye and base ointment on the other eye, four times a day for 1 week. The corneas were harvested for histopathologic studies at 1 day and 3 weeks. Corneal opacity and thickness were measured in 3 days and 1, 2, 3 weeks. RESULTS: In the AM ointment applicated group, the number of the infiltrated PMNs (polymorp-honuclear cells) and apoptotic keratocytes were significantly less than that of the control group (P<0.05). The degree of lipid peroxidation and myofibroblast differentiation were less than those of the control group. Corneal opacity and corneal edema were less in AM ointment group than control group. CONCLUSIONS: AM ointment application after alkali burn is beneficial to reduce inflammation, keratocyte apoptosis and lipid peroxidation, and is considered to suppress corneal haze by these effects. Therefore, this report may be a basic study for the AM ointment research to treat recalcitrant keratitis.
Alkalies
;
Amnion
;
Apoptosis
;
Ascorbic Acid*
;
Burns
;
Cataract
;
Cornea
;
Corneal Edema
;
Corneal Opacity
;
Epithelial Cells*
;
Fibronectins
;
Hydrogen Peroxide*
;
Hydrogen*
;
Inflammation
;
Keratitis
;
Lipid Peroxidation
;
Myofibroblasts
;
Rabbits
6.Coronary Revascularization without Extracorporeal Circulation: Two Case Reports.
Jong Myeon HONG ; Yong Sun JEON ; Oh Gon KIM ; Jang Soo HONG ; Hoon KANG ; Seung Woon LIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(11):1132-1135
We have experienced two cases of coronary revascularization without extracorporeal circulation in a 63 year old female patient and a 75 year old male patient. The first patient had the lesion which was the nearly total occulusion of mid-LAD, about 90% luminal narrowing of second diagonal branch and less than 50% stenosis of proximal RCA. The other male patient had a single vessel disease involving about 95% stenosis of proximal LAD and 1st diagonal branch. PTCA failed in the first patient because of relatively long sinus pause during procedure. In both of the patients, the coronary revascularizations were done at distal LAD and diagonal branch using left internal mammary artery and saphenous vein graft under the beating state, respectively. The postoperative courses were uneventful and the patients were discharged without any complications.
Aged
;
Constriction, Pathologic
;
Extracorporeal Circulation*
;
Female
;
Humans
;
Male
;
Mammary Arteries
;
Middle Aged
;
Phenobarbital
;
Saphenous Vein
;
Surgical Procedures, Minimally Invasive
;
Transplants
7.Cardiac Metastasis of Malignant Melanoma: A Case Report.
Oh Gon KIM ; Jong Myun HONG ; Suk Jae LEE ; Jang Soo HONG
The Korean Journal of Thoracic and Cardiovascular Surgery 1999;32(9):840-843
We report a case of a resection of very large intracavitary metastatic malanoma causing obstruction of the right ventricular inflow and outflow tract of the heart. A 49-year-old woman with dyspnea and generalized edema was seen. Echocardiography reveal an intra cavitary mass occupying the entire right ventricle and pericardial effusion. The lesion was palliatively resected using a cardiopulmonary bypass and was confirmed as a malignant melanoma. The patient is alive and improved symptomatically 30days after the operation.
Cardiopulmonary Bypass
;
Dyspnea
;
Echocardiography
;
Edema
;
Female
;
Heart
;
Heart Neoplasms
;
Heart Ventricles
;
Humans
;
Melanoma*
;
Middle Aged
;
Neoplasm Metastasis*
;
Pericardial Effusion
8.Efficacy of Repeated Transrectal Prostate Biopsy in Men Younger Than 50 Years With an Elevated Prostate-Specific Antigen Concentration (>3.0 ng/mL): Risks and Benefits Based on Biopsy Results and Follow-up Status.
Ho Gyun PARK ; Oh Seok KO ; Young Gon KIM ; Jong Kwan PARK
Korean Journal of Urology 2014;55(4):249-253
PURPOSE: Prostate cancer is rare in men younger than 50 years. Digital rectal examination (DRE) and measurement of prostate-specific antigen (PSA) concentrations are standard screening methods for detecting prostate cancer. We retrospectively investigated the risks and benefits of repeated transrectal ultrasonography-guided prostate needle biopsies in relation to the follow-up status of men younger than 50 years with a consistently high PSA concentration (>3.0 ng/mL). MATERIALS AND METHODS: During the period from January 2000 through February 2013, we reviewed patient's ages, dates of procedures, DRE results, frequencies of biopsies, results of the biopsies, periods of follow-up, PSA concentrations, and prostate volumes in Chonbuk National University Hospital records. We conducted telephone interviews in patients who did not undergo regular follow-up. RESULTS: The mean age of the patients was 44.7 years, and the mean PSA concentration was 8.59 ng/mL (range, 3.04-131 ng/mL) before biopsy. The PSA concentration was significantly different (p<0.001) between the patients with prostate cancer and those with benign prostatic hyperplasia (BPH). Nineteen patients underwent repeated prostate biopsy; however, in only one patient did the pathologic findings indicate a change from BPH to prostate cancer. We identified several complications after transrectal biopsy through an evaluation of follow-up data. CONCLUSIONS: All patients with benign prostatic disease based on their first biopsy were shown to have benign disease based on all repeated biopsies (15.83%), except for one patient; however, several complications were noted after biopsy. Therefore, the risks and benefits of repeated biopsy in young patients should be considered because of the low rate of change from benign to malignant disease despite continuously high PSA concentrations (>3.0 ng/mL).
Biopsy*
;
Biopsy, Needle
;
Digital Rectal Examination
;
Follow-Up Studies*
;
Hospital Records
;
Humans
;
Interviews as Topic
;
Jeollabuk-do
;
Male
;
Mass Screening
;
Prostate*
;
Prostate-Specific Antigen*
;
Prostatic Diseases
;
Prostatic Hyperplasia
;
Prostatic Neoplasms
;
Retrospective Studies
;
Risk Assessment*
;
Young Adult
9.Ectopic Prostate Tissue in the Posterior Wall of the Bladder.
Hee Jong KIM ; So Ri LEE ; Jun CHOI ; In Gon KIM ; Jeong Oh LEE ; Bo Hyun HAN
Korean Journal of Urology 2006;47(8):903-905
We herein report a case of ectopic prostate tissue involving the posterior wall of the bladder. A 33-year-old man was referred to our hospital because of a bladder tumor that was incidentally discovered on abdominal ultrasonography (US). US and computed tomography (CT) showed a 1.5x2.0cm sized tumor in the posterior wall of the bladder. Cystoscopic examination revealed a sessile tumor, covered with normal bladder mucosa in the posterior wall of the bladder. Transurethral resection of the bladder tumor was carried out and the origin of the tissue was confirmed by immunohistochemical staining for prostate specific antigen. The histopathological examination revealed benign prostate tissue that was situated ectopically.
Adult
;
Humans
;
Mucous Membrane
;
Prostate*
;
Prostate-Specific Antigen
;
Ultrasonography
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
10.The Sympathetic Skin Responses after Thoracic Sympathicotomy for Patients with Palmar Hyperhidrosis.
Oh Gon KIM ; Jong Myun HONG ; Suk Jae LEE ; Jang Soo HONG ; Kwang Rae LEE ; Sang Gyu KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1999;32(6):579-583
BACKGROUND: Thoracic sympathicotomy has been used safely and successfully to manage palmar hyperhidrosis. The preoperative and postoperative recording of Sympathetic Skin Responses(SSR) was performed for objective evaluation and follow-up of thoracic sympathicotomy in hyperhidrosis patients, and also for ascertaining the clinical usefullness of SSR. MATERIAL AND METHOD: The recording of SSR was performed on 15 patients suffering from palmar hyperhidrosis with Medelec Sapphire Plus electromyogragh before and after thoracic sympathicotomy. Eletrical stimuli on the right median nerve was made in patients in supine position and results were recorded on right and left palms with soles at the same time by 4 channels. Skin temperatures were also monitored simultaneously. T2,3 sympathicotomy was performed with VATS in every patients. SSR was done in 2 patients one month later. RESULT: Clinically, all patients had symptomatic improvement with satisfaction. Postoperative complication was small amount of residual pneumothorax in 5 patients but it was absorbed sponteneously. There was no recurrence during follow-up period and ten patients(66%) complained compensatory hyperhidrosis. After operation, SSR change was shown in every 15 patients. Abolition of SSR on both palms was achieved in 12 patients(80%) and on both soles in 6 patients. In the other 3 patients, the latencies were significantly delayed and the amplitudes were significantly reduced at both palms and soles. In two patients who were examined at one month later after operation, similar results with postoperative SSRs were shown. The skin temperature on preoperative both palm and sole were lower than normal temperature, and those on postoperative both palm and sole were increased. Those had statistical significance(p<0.05), and the temperature on the palm was increased higher that than on the sole. CONCLUSION: After thoracic sympathicotomy was performed on palmar hyperhidrosis patients, an increment of skin temperatures and SSR changes were achieved at both palms and soles of all patients. Palmar SSRs were completely abolished in 12 patients(80%), and similar results of postoperative SSRs were achieved. The recording of SSR may be useful to easily and objectively assess the completeness of sympathicotomy and the follow-up of recurrence in hyperhidrosis patients.
Aluminum Oxide
;
Follow-Up Studies
;
Humans
;
Hyperhidrosis*
;
Median Nerve
;
Pneumothorax
;
Postoperative Complications
;
Recurrence
;
Skin Temperature
;
Skin*
;
Supine Position
;
Sympathetic Nervous System
;
Thoracic Surgery, Video-Assisted