PURPOSE: To evaluate the incidence and the site of osteomas and their relation to sinonasal inflammation. MATERIALS AND METHODS: 1578 PNS computed tomography (CT) of patients with symptoms of sinusitis were evaluated and correlation with plain radiographic finding was done. RESULTS: The total incidence of osteomas was 0.82%(13/1578) on plain radiography and 3.29% (52/1578) on CT. Fifty-seven osteomas were found in 1578 PNS CT, including 2 osteomas in 5 cases. The most common site was the ethmoid sinus(54%, 31/57) and the next was the frontal sinus(35%, 20/57) on CT. Forty-five osteomas (78.9%) were associated with the sinonasal inflammatory change. CONCLUSION: The total incidence of osteomas from our results was higher than previous reports. And based on the analysis of CT, the most common site was not the frontal sinus as all the previous reports stated, but the ethmoid sinus, probably by virtue of high resolution of CT and/or higher prevalence of inflammation in the ethmold sinus.
Ethmoid Sinus ; Frontal Sinus ; Humans ; Incidence ; Inflammation ; Osteoma* ; Prevalence ; Radiography ; Sinusitis ; Virtues

Though the incidence of paragonimiasis has been remarkably decreased since 1970, it is still not a rare disease in Korea. Major problems in the diagnosis of pulmonary paragonimiasis on chest radiography are its differentiation from pulmonary tuberculosis and lung cancer. Chest radiographic findings have been described in detail, but little have been reported on CT findings. We reviewed CT findings of 10 patients with pulmonary paragonimiasis. The characteristic CT findings were similar to those on chest radiography, such as air-space consolidation (70%), nodular mass (50%), pleural effusion (40%), cystic lesion (30%), small low density within the mass (30%), linear density (20%), pneumothorax(20%), and burrow track (20%). CT depicted the cystic lesions and the burrow tracks more clearly and showed the small worm-retaining cysts within the mass that were not detectable on chest radiography. In conclusion, all of these CT findings are useful in the diagnosis of pulmonary paragonimiasis especially when differentiation from tuberculosis or lung canceris difficult on chest radiography.
Diagnosis ; Humans ; Incidence ; Korea ; Lung ; Lung Neoplasms ; Paragonimiasis* ; Pleural Effusion ; Radiography ; Radiography, Thoracic ; Rare Diseases ; Thorax ; Tuberculosis ; Tuberculosis, Pulmonary

PURPOSE: Bile acids (especially deoxycholate) was known to be toxic and mutagenic on colon epithelium. They proposed at least four mechanisms for the bile acid toxicity. It is the one of these mechanisms that bile acid inhibits the xenobiotic metabolizing enzyme activity (esp glutathione S-transferase, GST). So we measured the cytosolic GST level of colon carcinoma cell lines after deoxycholate exposure whether or not the deoxycholate lowered the cytosolic GST activity. METHODS: Three colon cancer cell lines (LoVo, SW480, HT29) were used for this study. We calculated the cellular toxicity by MTS method. And cytosolic GST activity was measured according to the method as Habig described. For total GST activity, 2.5 mM 1-chloro-2,4-dinitrobenzene was used for substrate, and measured as absorbance in 340 nm. RESULTS: Basal cytosolic GST level for LoVo, SW480, HT29 cell line was 514.59+/-27.01, 291.63+/-38.44 and 344.58+/-47.92 nmol/min/mg cytosol protein. GST level did not changed significantly after 5 days culture without DCA. But GST level was decreased significantly to 128.63+/-21.35, 134.33+/-41.76 and 163.10+/-22.73 nmol/min/mg cytosol protein each cell line after 5 days deoxycholate exposure (p<0.005). CONCLUSION: Cytosolic GST level was lowered significantly after deoxycholate exposure for 5 days. One of the mechanisms of bile acid toxicity for colon cancer cell is proposed to inhibit cytosolic GST activity.
Bile ; Bile Acids and Salts ; Cell Line* ; Colon* ; Colonic Neoplasms* ; Cytosol* ; Deoxycholic Acid* ; Dinitrochlorobenzene ; Epithelium ; Glutathione Transferase* ; Glutathione* ; HT29 Cells ; Humans

Dental porcelain is one of the materials of choice for restoration where esthetics is of concern, but has a considerable potentials of wear. The wear of enamel is variable when opposed by different porcelain systems and surface conditions, and the exposed dentine and opaque porcelain due to clinical failure is expected to have high potentials of wear. The purpose of this study was to investigate the wear effects of self-glazed, polished incisal porcelain, polished dentine and opaque porcelain against human enamel in the laboratory by use of a pin-on-disk type wear tester. 4 types of dental porcelain(Vita-omega, Ceramco-II, Vintage powder, Vita-alpha of In-Ceram system) and type IV gold alloy as cotrol group were used for test specimens. Intact buccal cusps of maxillary premolar were used for enamel specimens, and the cusp converged to a point and was devoid of visible abrasion, caries, decalcification. The upper part was the cusp of a maxillary premolar and the lower part was a porcelain specimen. The enamel wear was determined by weighing the cusp before and after each test. Surface profilometer was used to quantitate wear of the porcelain specimens. Vicker's hardness tester was used to evaluate the surface hardness of test specimens. The SEM was used to evaluate the wear surfaces. The results were as follows : 1.Self-glazed porcelain produced more enamel wear than polished porcelain, especially the enamel wear of Vita-alpha self-glazed porcelain was 3.2 times more than that of other groups. 2.Opaque porcelain produced least porcelain wear, Vita-alpha self-glazed porcelain produce greatest porcelain wear, but there was no statistically significant difference between the groups(p>0.05). 3.The enamel wear of dentine porcelain was 3.8 times more than that of polished inisal porcelain(p<0.05), and the enamel wear of opaque porcelain was 1.9 times more than that of polished inisal porcelain, but there was no statistically significant difference between the groups(p>0.05). 4.Overglazed porcelain produced less enamel wear than self-glazed porcelain, and more enamel wear than polished porcelain, but there was no statistically significant difference between the groups(p>0.05). 5.The hardness number of Vita-omega dentine and Ceramco-II opaque porcelain was larger, but that of Vintage dentine and Vita-alpha self-glazed porcelain was similar to other groups. 6.Examination of SEM photographs revealed that overglazed porcelain had smoother surface than self-glazed porcelain, and self-glazed porcelain had smoother surface than polished porcelain. Much polishing scratches and larger porosities were observed on the opaque porcelain specimen, and much polishing scratchess and small porosities were observed on the dentine porcelain specimen.
Alloys ; Bicuspid ; Dental Enamel* ; Dental Porcelain* ; Dentin ; Esthetics ; Hardness ; Hardness Tests ; Humans* ; Porosity

BACKGROUND: Chlamydia pneumoniae can cause chronic inflammation in the arterial wall. C. pneumoniae infection has been investigated as a new risk factor for acute myocardiac infarction (AMI), afatal outcome of coronary artery occlusion. METHODS: IgG and IgM for C. pneumoniae using micro-immunofluorescence were evaluated in 80 AMI patients and 46 controls without coronary arterial disease. RESULTS: Chronic infection, defined by equal or higher than 1: 32 titers of IgG of C. pneumoniae, was observed in 51.3% (41/80) in AMI and 17.4% (8/46) in controls (P<0.05). None of the subjects showed acute infection, defined by equal or higher than either 1: 16 of IgM or 1: 512 of IgG of C. pneumoniae. CONCLUSIONS: Chronic C. pneumoniae infection was significantly more common in AMI patients compared to the controls.
Chlamydia* ; Chlamydophila pneumoniae ; Coronary Vessels ; Humans ; Immunoglobulin G ; Immunoglobulin M ; Infarction* ; Inflammation ; Pneumonia ; Risk Factors

We investigated the ability of the GDx-Nerve Fiber Analyzer (NFA) to discriminate between normal and early glaucomatous eyes among Korean individuals by reviewing the medical records of 217 consecutive subjects: 61 early glaucoma patients, 68 ocular hypertensive patients, and 88 normal subjects. GDx parameters were compared using ANOVA. The Receiver Operating Characteristics (ROC) curve for each GDx-NFA variable was used to diagnose each parameter, and Pearson correlation coefficients were calculated to assess the association between GDx-NFA parameters and visual field indices in early glaucoma. The best GDx parameters to discriminate between early glaucomatous and normal subjects were the number, maximum modulation, ellipse modulation and inferior ratio (i.e. area under the ROC curve > 0.8). A value for the Number of equal to or greater than 27 was optimal for detecting early glaucoma, with a sensitivity of 80.3% and specificity of 80.7%. In addition, symmetry was positively correlated with the corrected pattern standard deviation (CPSD) among visual field indices in early glaucoma.
*Diagnostic Techniques, Ophthalmological ; Female ; Glaucoma, Open-Angle/*diagnosis/ethnology ; Humans ; Intraocular Pressure ; Korea/epidemiology ; Male ; Middle Aged ; Nerve Fibers/*pathology ; Ocular Hypertension/diagnosis/ethnology ; Optic Nerve Diseases/*diagnosis/ethnology ; ROC Curve ; Retinal Ganglion Cells/*pathology ; Retrospective Studies ; Sensitivity and Specificity ; Visual Fields

Neonatal Gaves disease is a relatively rare condition due to transplacental passage of Thyroid-stimulating antibody(TSAb) from a mother with active or inactive Graveses disease or autoimmune thyroiditis. A 11-day-old female newborn was referred to our department of pediatrics from a local clinic because of low level T4(3.55microg/dl) concurrent with high level TSH (501.74uIU/ml) on the 5th day neonatal metabolic screening. But, our repeated laboratory data showed very high serum T4(59.6microg/dl), T3(1,600ng/dl), suppressed TSH(0.43uIU/ml), and the presence of TSH receptor antibody. Her mother was treated with propylthiouracil(PTU) for Graves disease during pregnancy. Therefore, we thought it was a delayed-onset neonatal hyperthyroidism, because the fetal thyroid gland was initially suppressed by antithyroid drug taken during pregnancy. After initiating antithyroid drug therapy for the hyperthyroid nature, TSH levels became elevated again, while thyroid hormone levels decreased. Maternal and infant blood samples at the 23th day after birth were examined for serum autoantibodies directed towards the TSH receptor(Thyrotropin-binding inhibitory immunoglobulin:TBII, Thyroid-stimulating antibody:TSAb, Thyroid-stimulating blocking antibody:TSBAb) and high levels of TBII and TSAb were detected. About 2 months after birth, TBII and TSAb decreased within normal limit, and then we could stop antithyroid medication in safety. We report here a case of neonatal Graveses disease with very high level of T4 and T3, but firstly presented as hypothyroid nature on neonatal screening because of the maternally transferred antithyroid drug, PTU.
Autoantibodies ; Drug Therapy ; Female ; Graves Disease ; Humans ; Hyperthyroidism ; Infant ; Infant, Newborn ; Mass Screening ; Mothers ; Neonatal Screening ; Parturition ; Pediatrics ; Pregnancy ; Receptors, Thyrotropin ; Thyroid Gland ; Thyroiditis, Autoimmune

No abstract available.
Anesthesia, Local* ; Arthroscopy* ; Knee*

Treacher Collins syndrome is inherited as an autosomal dominant trait with variable penetrance. It shows a marked variability even in the same family. This syndrome is developmental defect affecting the branchial arches. It is not usually associated with acute respiratory distress, but has symptoms of microtia, hypoplastic zygomatic bones, hypoplastic mandibular rami, and bilateral coloboma. It usually requires an emergency operation immediately after the birth. We experienced an infant with Treacher Collins syndrome who showed retrognathia, glossoptosis, microtia, and cleft palate. Intermittent cyanosis, depression of the chest, respiratory difficulty associated with airway obstruction, and swallowing difficulty were also observed. To relieve severe upper airway obstruction caused by retrognathia and glossoptosis, we simultaneously performed tongue-lip adhesion and subperiosteal release of the floor of the mouth. The respiratory and swallowing difficulties were relieved and the tongue repositioned anteriorly. We report the present case with a review of the literature.
Airway Obstruction* ; Branchial Region ; Cleft Palate ; Coloboma ; Cyanosis ; Deglutition ; Depression ; Emergencies ; Humans ; Infant* ; Mandibulofacial Dysostosis* ; Mouth ; Parturition ; Penetrance ; Retrognathia ; Thorax ; Tongue

PURPOSE: To report the clinical result of pars plana vitrectomy (PPV) as the primary treatment in a patient with multiple bilateral retinal capillary hemangiomas (RCH) accompanying epiretinal membrane (ERM). CASE SUMMARY: A 17-year-old female patient visited our clinic for decreased bilateral vision 4 days in duration. At the first visit, the vision in her right eye was 20/25 and, 20/100 in her left eye. Bilateral multiple retinal capillary hemangiomas were observed at the peripheral retina in both eyes on fundus examination, fluorescein angiography (FAG) and optical coherence tomography (OCT). ERM and associated macular edema (ME) were noted in her left eye. For her left eye, focal laser photocoagulation (PC) was performed 6 times. ME was decreased and her vision improved to 20/25. However, 3 months after the initial visit, her vision decreased to 20/400 accompanied with exacerbated ERM and ME. Therefore, PPV was performed in her left eye. ERM and associated ME were decreased and her vision improved to 20/25 after 18 months. PPV was performed in the right eye immediately after her vision worsened (best corrected visual acuity, BCVA 20/40) and ERM occurred. After 15 months later, vision in her right eye improved to 20/20 and ERM was also decreased.
Adolescent ; Epiretinal Membrane* ; Female ; Fluorescein Angiography ; Hemangioma, Capillary* ; Humans ; Light Coagulation ; Macular Edema ; Retina ; Retinaldehyde* ; Tomography, Optical Coherence ; Visual Acuity ; Vitrectomy*