OBJECTIVE: The kinetic indices of apoptosis and cell proliferation m a histopathologic spectrum of the cervical neoplasia were evaluated to clarify the correlation between cervical neoplasm and apoplasis. Specific lesioas included cervical intraepithelial neoplasia(CIN), catcinoma in situ(CIS), and invasive carcinama. METHODS: Archival samples from normal cervical epithelium(n=7), low-grade squamous intraepithelial lesions(LGSIL, n=17), high-grade squamous intraepithelial lesions(HGSIL, n=17), invasive squamaus carcinoma(n=7) were evaluated for apoptosis and cell proliferation. Apoptotic cells were identified with terminal deoxynucleotidyl transferase-labeling of the 3'-OH end of DNA nucleosomes, and then apoptotic index(A.I sum of apoptotic bodies/ 1000 tumor cells) and total cell count(* 400 magnification) were calculated. RESULTS: In normal squamous epitheliam, Apoptotic bodies were mainly localized in ial layers, for low-grade squamous intraepithelial lesions(HGSIL) in superficial and intermediated layers, for high-pade squamous intraepithelial lesions(HGSIL) in intermediated and parabasal layers, for invasive carcinoma in full thic of squamous epithelium. Apototic indces(AI) in invasive carcinoma(mean: 6.21) were significantly higher than indices for high-grade squamous intraepithelial lesions(HGSIL, mean: 0.98) and high-grade squamous intraepithelial lesions(HGSIL, mean: 0.98) were significantly higher than indices for low-grade squamous intraepithelial lesions(LGSIL, mean: 0.12)(p<0.01), the total cell counts increased significantly as the specimens progressed toward invasive disease. (p<0.01) CONCLUSION: Apoptosis in cervical neoplasia appears to be closely related to poliferation and progression of the cervical squamous epithelial cell. This phenotype may allow identification of premalignant lesions with the potential to transform to cervical cancer.
Apoptosis* ; Cell Count ; Cell Proliferation ; DNA ; Epithelial Cells ; Epithelium ; Nucleosomes ; Phenotype ; Uterine Cervical Neoplasms

We report a 71 years old woman with transient periodic limb movement disorder and myoclonus that appeared after acute gastrointestinal bleeding. The abnormal movements dissolved as the blood loss was restored. The woman was later found to have an asymptomatic spine meningioma. Iron defi ciency due to acute bleeding may be the trigger resulting in the abnormal movements in this patient with subclinical spinal meningioma

No abstract available.
Hospitals, General* ; Humans ; Inpatients* ; Sleep Initiation and Maintenance Disorders*

Two cases of ectopic kidney were reported in conjunction with review of literatures. The ectopic kidneys, measuring 13 cm-,15 cm in length of their ureter, were located between the L3 .and S1. Operative removal of the ectopic kidney disclosed aberrant arteries in their both pole. histological examination revealed normal findings.
Arteries ; Kidney* ; Ureter

No abstract available.

No abstract available.
Animals ; Lung* ; Lymphocytes* ; Mice*

The majority of the radiologically detected solitary pulmonary nodules are benign, although relatively infrequent malignant nodules always make problems. Regarding the high prevalence rate of pulmonary tuberculosis in this country, it could be assumed that a large number of the benign pulmonary nodules are tuberculomas. There have been various attempts with CT in the evaluation of solitary pulmonary nodules. Most of them were focused on the nodule itself, however. We evaluated not only the character of the nodules bus also the parenchymal changes around the nodules to find evidences of associated pulmonary tuberculosis by using highresolution CT. We analyzed 35 benign solitary pulmonary nodules which are less than 4cm in size. Three or 5 high-resolution CT images were obtained in additon to the conventional CT images. Most of the nodules were located at the periphery of lung. Most of the nodules were proved to betuberculomas or presumed to be tuberculomas (n=32). The mean diameter of the nodules was 22mm. Most of the nodules were well-marginated. We observed a lobulated margin in 16 tuberculomas and a finely spiculated margin in 6 tuberculomas. Typical patterns of benign calcification were observed in 12 tuberculomas and one margin in 6 tuberculomas. Typical patterns of benign calcification were observed in 12 tuberculomas and one hamartoma. the findings of parenchymal tuberculosis such as interlobular septal thickening, small centrilobular micronodules, and lobular overinflation were identified in 12, 6 and 12 cases of tuberculomas respectively. The changes of juxtanodular lung parenchyma as well as the character of nodule itself were well demonstrated on high-resolution CT. which is valuabel I the evaluation of the equivocal solitary pulomnary nodules. Evidences of pulmonary tuberculosis around the nodule would be the secondary sign of benignancy.
Hamartoma ; Lung ; Prevalence ; Solitary Pulmonary Nodule* ; Tuberculoma ; Tuberculosis ; Tuberculosis, Pulmonary

The majority of the radiologically detected solitary pulmonary nodules are benign, although relatively infrequent malignant nodules always make problems. Regarding the high prevalence rate of pulmonary tuberculosis in this country, it could be assumed that a large number of the benign pulmonary nodules are tuberculomas. There have been various attempts with CT in the evaluation of solitary pulmonary nodules. Most of them were focused on the nodule itself, however. We evaluated not only the character of the nodules bus also the parenchymal changes around the nodules to find evidences of associated pulmonary tuberculosis by using highresolution CT. We analyzed 35 benign solitary pulmonary nodules which are less than 4cm in size. Three or 5 high-resolution CT images were obtained in additon to the conventional CT images. Most of the nodules were located at the periphery of lung. Most of the nodules were proved to betuberculomas or presumed to be tuberculomas (n=32). The mean diameter of the nodules was 22mm. Most of the nodules were well-marginated. We observed a lobulated margin in 16 tuberculomas and a finely spiculated margin in 6 tuberculomas. Typical patterns of benign calcification were observed in 12 tuberculomas and one margin in 6 tuberculomas. Typical patterns of benign calcification were observed in 12 tuberculomas and one hamartoma. the findings of parenchymal tuberculosis such as interlobular septal thickening, small centrilobular micronodules, and lobular overinflation were identified in 12, 6 and 12 cases of tuberculomas respectively. The changes of juxtanodular lung parenchyma as well as the character of nodule itself were well demonstrated on high-resolution CT. which is valuabel I the evaluation of the equivocal solitary pulomnary nodules. Evidences of pulmonary tuberculosis around the nodule would be the secondary sign of benignancy.
Hamartoma ; Lung ; Prevalence ; Solitary Pulmonary Nodule* ; Tuberculoma ; Tuberculosis ; Tuberculosis, Pulmonary

OBJECTIVE: Frozen-section evaluation of gynecologic tumors has historically been used to establish a histopatholgic diagnosis and to guide surgeons in appropriate surgical procedure. this study is to assess the clinical appropriation and accuracy of frozen-section biopsy in gynecologic tumors. METHODS: This is a retrospective quality assurance study all of frozen-section biopsy done at Chungnam National University Hospital during a three year period (1995 to 1997). There were 125 cases out of 2310 surgical specimens for gynecologic tumors, and the results were compared with final diagnoses based on fixed tissue specimens. RESULTS: Frozen section biopsy was accurate in 95.2% of all cases, in 96.3% (104/108) of ovarian tumor cases, and in 88.2% (15/17) of uterine tumor cases. Analysis of 6 inaccuracy cases revealed that most cases were sampling errors and occurred in mucinous tumor, belonging to all cases of ovarian tumors. Sensitivity, specificity, positive predictive value, and negative predictive value of frozen-section biopsy in ovarian tumors were 0.94, 1.00, 1, 00, 0.97. CONCLUSION: Frozen section biopsy is an appropriate method as a basic guideline during operations of gynecologic tumors and this method can obtains the highest accuracy when there is cooperation between experienced surgeons and reliable and careful pathologists. The accuracy of frozen section diagnosis has important implications regarding the type and extent of the primary surgery for gynecologic tumors.
Biopsy* ; Chungcheongnam-do ; Diagnosis* ; Frozen Sections* ; Mucins ; Retrospective Studies ; Selection Bias ; Sensitivity and Specificity

BACKGROUND: The aging process may be induced, at least in part, by reactive oxygen species(ROS). It has been though that the lung could be a good source of ROS because it has a high oxygen tension. In the present study, we invetigated the inducibility of the first and last lines against oxidative stress, superoxide dismutases (Cu/Zn-SOD and Mn-SOD) as a scavenger of O2- and metallothionein(MT) as a scavenger of OH·, respectively, in mouse lungs with age. METHODS: Oxidative stress was induced by paraquat, an intracellular superoxide generator, at 1, 4, 8, and 12 months of age and then SODs and MT mRNAs were determined by RT-PCR method. RESULTS: The steady-state level of Mn-SOD mRNA increased from 1 to 8 months but decreased thereafter. However, Mn-SOD mRNA was not induced by paraquat after 1 month. On the other hand, there was no change in the steady-state level of Cu/Zn/-SOD mRNA, which decrease abruptly at 12 months of age. Additionally, Cu/Zn/-SOD mRNA was not induced by paraquat at any age. There was no change in the steady-state level of MT mRNA with age whereas its inducibility by paraquat was intact at all ages. CONCLUSION: These results indicate that lack of induction of SODs with age may be one of the causative factors in the aging process while induction of MT may play an important role in the defense against oxidative stress. It is therefore implicated that the tissue antioxidant/proxidant balance could be one determinants of meal life span.
Aging* ; Animals ; Hand ; Lung* ; Meals ; Metallothionein* ; Mice* ; Oxidative Stress ; Oxygen ; Paraquat* ; RNA, Messenger ; Superoxide Dismutase ; Superoxides*