No abstract available.
Leiomyoma*

PURPOSE: To evaluate tlne significance of vaginal air seen on CT scan in preoperative staging of uterine cervical carcinoma. METHODS AND MATERIALS: A comparison was made between CT findings of vaginal air and true vaginal involvement status in 85 patients with uterine cervical carcinoma. CT findings were analyzed in terms of the presence or absence of vaginal air, number of CT slices in which vaginal air was seen, shape of vaginal air, and relation of vaginal airto cervical mass. RESULTS: Vaginal air was present in 35 patients and was absent in 50. Although the mere presence of vaginal air or multiplicity of CT slices showing vaginal air did not signify the presence of vaginal involvement, vaginal air with irregular margin or vaginal air adjacent to uterine cervical mass was suggestive of vaginal involvement. CONCELUSION: These observation of vaginal air in interpreting CT may be helpful in the preoperative staging of uterine cervical carcinoma.
Humans ; Tomography, X-Ray Computed ; Vagina*

A Clinical observation was made on five patients with ruptured aortic sinus of Valsalva who visited Seoul National university hospital during the period of May, 1975~Jan., 1980. 1. Age distribution was from 19 to 32 years and four patients were male and the rest one case was female. 2. Chief complaints on admission were dyspnea in 3 cases and chest pain in 2 cases. Onset of symptoms was abrupt in 4 cases. 3. Continuous murmur was heard at third and fourth intercostal space along left sternal border with thrill in all cases. 4. Cardiac catheterization and aortography showed regurgitant flow from aorta to right ventricle in all cases. 5. Operation was done successfully in 3 cases, of which aortic insufficiency was persistent in one case.
Age Distribution ; Aorta ; Aortography ; Cardiac Catheterization ; Cardiac Catheters ; Chest Pain ; Dyspnea ; Female ; Heart Ventricles ; Humans ; Male ; Seoul ; Sinus of Valsalva*

Idiopathic interstitial pneumonias are currently classified into four categories: usual interstitial pneumonia, nonspecific interstitial pneumonia with fibrosis, acute interstitial pneumonia and desquamative interstitial pneumonia. The fibrotic process in interstitial pneumonias appears to result from a complex interaction between fibroblasts, other lung parenchymal cells and macrophages. The complex relationship between the local release of growth-promoting cytokines by alveolar macrophages and resident fibroblasts represents a necessary step for fibrosis or remodeling after lung injury. Injury to the epithelium and basement membranes is likely necessary for the fibrotic process to occur. Usual interstitial pneumonia, most frequent among interstitial pneumonias and has a poor prognosis, appears on high-resolution CT as patchy subpleural areas of ground-glass attenuation, irregular linear opacity, and honeycombing. Nonspecific interstitial pneumonia with fibrosis, the second most frequent and has a better prognosis than usual interstitial pneumonia, appears as subpleural patchy areas of ground-glass attenuation with associated areas of irregular linear opacity on CT. Acute interstitial pneumonia with high mortality rate presents as extensive bilateral airspace consolidation and patchy or diffuse bilateral areas of ground-glass attenuation. Desquamative interstitial pneumonia with good prognosis presents as patchy subpleural areas of ground-glass attenuation in middle and lower lung zones.
Human ; Lung Diseases, Interstitial/radiography ; Lung Diseases, Interstitial/physiopathology ; Lung Diseases, Interstitial/pathology*

To investigate the an air pollution by particulate matter and its dispersion, a cement plant producing portland cement 600,000ton/year and its vicinity were surveyed from October, 1980 to April, 1983. The survey was mainly focused on main stack emission rate of the cement plant and particle size distribution in the dust, dustfall and total suspended particulate concentration in the area by month and distance from the stack. The results of the study were as follows; 1. The main stack emission rate was surveyed before and after the spray tower was additionally installed to the original E.P. and bag filter. Before the spray tower installed, the main stack emission rate was higher(0.64g/Nm3) than the emission standard of Korean Environmental Preservation Law's(0.5g/Nm3, amended to 0.4g/Nm3 on April 1983), but after the spray tower was installed, its main stack emission rate was markedly decreased to the standard (0.43g/Nm3). 2. 2~3 micrometer of the particle size was the largest portion(20.8%) of the dust particulate from the main stack and 50% of the frequency distribution was 1.5 micrometer of the size. Most particle size was below 10 micrometer. 3. The spray tower reduced the dustfall to 37.81~9.76ton/km2/month while dustfall appeared at 45.29-15.45ton/km2/month, in the vicinity of plant before spray tower installed. 4. Mean concentrations of total suspended particulate for 24 hours of the various stations were determined in 20.6-200.0 microgram/m3, 3 stations of them were higher than the value of Harry and William's arithmetic average standard 130 microgram/m3. 5. Linear regression between dustfall[X] and total suspended particulate[X] concentration was an equation, Y=4.024X+11.479.[r=0.91]. 6. During the whole seasons in the opposite area 100m apart from the emission source the prevailing wind direction was with estimated more than 30ton/km2/month, and the concentration of total suspended particulate for 24 hours averaging time was more than 140 microgram/m3 in the same area and direction. 7. Assuming the wind direction were constant through the day dustfalls for a day were estimated at 13.40ton/km2/day, 10.79ton/km2/day and 4.55ton/km2/day at various distances of 100m, 500m and 1,500m from the emission source respectively. 8. In the simutalion of dustfall and suspended dust by area, Gaussian dispersion model modified by size distribution of particulate matter was not applicated since the emission of dust were from multi sources other them stack. From the above results, it could be applied that the dispersion of dust from the cement plant is estimated and regulated for the purpose of environmental protection.
Air Pollution ; Natural Resources ; Dust ; Linear Models ; Particle Size ; Particulate Matter ; Plants* ; Seasons ; Wind

No abstract available.
Lung Diseases, Interstitial*

One hundred and twenty seven patients with uterine cervical carcinoma underwent computed tomography(CT) and magnetic resonance(MR) imaging, followed by surgical exploration. MR imaging was superior to CT in visualization of the tumor, for parametrial evaluation, and for tumor staging. MR imaging had an accuracy of 74% in the assessment of thickness of cervical stromal invasion. The accuracy rates for parametrial evaluation were 78% for CT and 88% for MR imaging. The overall accuracy rates for tumor staging were 68% for CT and 80% for MR imaging. The accuracy rates for pelvic lymph node evaluation were 82% for CT and 85% for MR imaging. Our findings suggest that MR imaging is supperior to CT in preoperative staging of uterine cervical carcinoma.
Humans ; Lymph Nodes ; Magnetic Resonance Imaging* ; Neoplasm Staging

PURPOSE: The objective of this study is to observe high-resolution computed tomography (HRCT) findings of lung parenchyme in very low birth weight (VLBW) infants between the corrected age of 38-42 weeks who were treated with oxygen after birth, and to compare them to the clinical severity of bronchopulmonary dysplasia (BPD). METHODS: The lungs of fourty-four VLBW infants with gestational ages of less than 32 weeks and birth weights of less than 1,500 g who were treated with oxygen after birth were examined using HRCT taken when the corrected age was between 38-42 weeks. Common findings among the infants and the frequency of their occurrences were noted. Total CT scores obtained by the summation of air trapping and actelectasis scores and the ratio of bronchus-to-pulmonary artery diameter were used to quantitatively evaluate HRCT findings and correlate them with the clinical severity of BPD as defined by Jobe-Bancalari diagnostic criteria. RESULTS: 1) The most common findings in HRCT images of the lungs were air trapping (56%), atelectasis (70.5%), linear opacity (77%), and distortion of the bronchopulmonary bundle (65.9%). These findings were more commonly observed in infants with BPD in a mixed pattern than those without (P<0.05). However, abnormal findings were also found in HRCT images of some infants without BPD. In infants with BPD, air trapping, atelectasis and total CT scores were higher than those without BPD. Also infants with BPD had a lower bronchus-to-pulmonary artery diameter than those without BPD (P<0.05). 2) The total CT scores (r=0.799, P<0.0001) and the ratio of bronchus- to-pulmonary artery diameter (r=0.576, P<0.0001) showed a linear correlation with the clinical severity of BPD. CONCLUSION: HRCT findings in VLBW infants between the corrected age of 38-42 weeks who had been treated with oxygen after birth are useful in revealing pathologic changes in the lung parenchyme and show a good correlation with the clinical severity of BPD.
Arteries ; Birth Weight ; Bronchopulmonary Dysplasia ; Gestational Age ; Humans ; Infant* ; Infant, Newborn ; Infant, Very Low Birth Weight* ; Lung* ; Oxygen Inhalation Therapy ; Oxygen* ; Parturition ; Pulmonary Atelectasis

Interstitial lung disease (ILD) is the most common pulmonary manifestation of connective tissue disease (CTD). It may develop in the patients with preexisting connective tissue diseases or may be the initial lone manifestation of an underlying CTD. Since ILD causes a potentially substantial morbidity and mortality in the patients with CTD, close collaboration among pulmonologists, rheumatologists, radiologists and pathologists is very essential to optimize the diagnostic evaluation and treatment. Important information on the pattern and extent of the ILD can be obtained by chest HRCT imaging. In general, surgical lung biopsy is not recommended for CTD-associated ILD. All patients with CTD-associated ILD do not require pharmacologic treatment. The decision to treat CTD-associated ILD often depends on 1) whether the patient is clinically impaired by the ILD, 2) whether the ILD is progressive, and 3) what contraindications exist. Differential diagnosis from superimposed pneumonia and drug-induced ILD is quite important. Immunosuppressive therapy is the mainstay of treatment. Recent success of cyclophosphamide in the clinical trials of systemic sclerosis-associated ILD is promising.
Biopsy ; Connective Tissue ; Connective Tissue Diseases ; Cooperative Behavior ; Cyclophosphamide ; Diagnosis, Differential ; Humans ; Lung ; Lung Diseases, Interstitial ; Pneumonia ; Thorax

Recently published articles on interstitial lung disease (ILD) have focused on the accurate diagnosis of idiopathic pulmonary fibrosis (IPF), serum biomarkers, acute exacerbation of IPF, the prognostic factors of ILD and the trial of new treatment. In particular, reports on the serum biomarkers such as CC-chemokine ligand 18, surfactant protein, circulating fibrocytes, and acute exacerbation of IPF are sufficient to be mentioned here. Pirfenidone therapy is the most important trial for the treatment of IPF. Other newer treatment trials such as interferon-gamma, sildenafil and imatinib have been reported to be unsuccessful. On the other hand, the sirolimus trial for lymphangioleiomyomatosis is promising. Combined pulmonary fibrosis and emphysema and IgG4-related disease are established to be the new disease entities of ILD.
Benzamides ; Biomarkers ; Emphysema ; Hand ; Idiopathic Pulmonary Fibrosis ; Interferon-gamma ; Lung Diseases, Interstitial ; Lymphangioleiomyomatosis ; Piperazines ; Pulmonary Fibrosis ; Purines ; Pyridones ; Pyrimidines ; Sirolimus ; Sulfones ; Imatinib Mesylate ; Sildenafil Citrate