PURPOSE: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis(IPF) is higher than that of general population. To evaluate the frequency and CT findings of lung cancer associated with idiopathic pulmonary fibrosis, we analyzed 19 patients with lung cancer associated with idiopathic pulmonary fibrosis. MATERIALS AND METHODS: We analyzed retrospectively 19 patients with histologically confirmed lung cancer out of 208 patients diagnosed as IPF either by CT and clinical findings(n=188) or histologically(n=20). All 19 patients were male, aged 40--85 years (mean 66 years). Scanning techniques were conventional CT in 12 patients, HRCT in 1 patient and both conventional CT and HRCT in 6 patients. We analyzed the CT patterns of lung cancer and IPF, locations of the tumor and histologic types of lung cancer. RESULTS: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis was 9.1%(19/208). In 11 of 19 patients, CT findings of lung cancer were ill-defined consolidation-like mass. Lung cancer was located mainly in lower lobes(right lower Iobe;10/19, left lower Iobe;5/19) and at the periphery(12/19). Histologically, squamous cell carcinoma was the most common cell type (11/19). CONCLUSION: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis was much higher than that of general population. Typical CT findings of lung cancer were predominantly ill-defined consolidation like mass at the peripheral lung portion which is the [ocatiaon where the most advanced fibrosis occur.
Carcinoma, Squamous Cell ; Fibrosis ; Humans ; Idiopathic Pulmonary Fibrosis* ; Incidence ; Lung Neoplasms* ; Lung* ; Male ; Retrospective Studies

Chondroblastoma is a rare primary bone tumor which originates from cartilage, and represents approximate 1% af all bone tumor. The chondroblastoma arises most frequently from the epiphysis of the long bones with the humerus being the commonest site. It afflicts usually the young under 25 years with greater incidence in male. As there is no cartilage cell on craniofacial bone which is mainly fromed by intramembranous ossification, the chondroblastoma on the craniofacial bone is extremely rare. But the chondroblastoma recurred frequently in craniofacial bone when the mass is excised incompletely or curretted and, as the tumor has the outstanding ability of local invasiveness, it destructs the adjacent bone. In addition, it is difficult to diagnose differentially from sarcoma or giant cell tumor histopathologically. Due to the entities described above, it is necessary to remove the entire tumor mass as complete as possible, to treat with radiation pre or postoperatively for preventing from recurrence, and to observe for a long time. The chondroblastoma on temporal bone is rare and is difficult to diagnose and treat successfully. So we'd like to present a case of chondroblastoma which was originated from temporal side of TMJ with literatural review.
Cartilage ; Chondroblastoma ; Epiphyses ; Giant Cell Tumors ; Humans ; Humerus ; Incidence ; Male ; Recurrence ; Sarcoma ; Temporal Bone ; Temporomandibular Joint*

Primary carcinoma of fallopian tube is very rare tumor, that has an incidence less than 1% in all female genital malignanciea. Yhe symptoms are not distinctive, and in moat cases, they are so slight that the disease is well advanced when the diagnosis is made. The postmenopausal bleeding is the most common presenting eomplaint. The diagnosis of carcinoma of the fallopian tube is not made preoperatively in most cases. A 57 years woman presented with complainta of postmenopausal bleeding for 1 month. This paper reports a case of primary fallopian tube carcinoma and presents literature review.
Diagnosis ; Fallopian Tubes* ; Female ; Hemorrhage ; Humans ; Incidence

Asthma and allergic diseases are one of the most common disorders in children. Due to its increased prevalence, as well as the increased morbidity and mortality from these diseases, asthma and allergic diseases have come to be recognized as a major worldwide public health issue. In addition, socioeconomic burden of asthma and allergic diseases also has increased in Korea. The International Study of Asthma and Allergies in Childhood (ISAAC) investigated the worldwide prevalence of asthma and other allergic diseases using simple standardized methods because of the comparison of asthma and allergic diseases between the countries. In Korea, several epidemiologic studies have been conducted to determine the prevalence of asthma in children. Although these studies showed increased prevalence of asthma among Korean children (from 3.4% in 1964 to 10.1% in 1989), these findings were based on data from small numbers of subjects. The first Nationwide Study of Asthma and Allergies in Korean Children, which utilized the Korean version of ISAAC written and video questionnaire, was conducted in 1995 and the second Nationwide Study of Asthma and Allergies in Korean Children was conducted in 2000, directed by the Korean Academy of Pediatric Allergy and Respiratory Diseases. We report here the prevalence of asthma and other allergic diseases in Korean children and adolescents, and show the changes that occurred over this 5 year period. We also describe the risk factors for development of these diseases in Korean children. We developed Korean versions of the ISAAC written (WQ) and video (AVQ) questionnaires for allergic diseases. In 1995, the enrolled population consisted of 25,117 children selected from 34 elementary school and 14,946 children selected from 34 middle school across the nation, the response rate was 94.8%. In 2000, 27,831 children selected from 34 elementary school and 15,214 children selected from 34 middle school, and the response rate was 96.4%. From these studies, we can confirm that increase of the prevalences of asthma, allergic rhinitis, and atopic dermatitis in Korea, except the prevalence of food allergy. Especially, the video questionnaire showed increases in the lifetime and 12 month prevalence rates of wheeze at rest, exercise- induced wheeze, nocturnal wheeze, nocturnal cough, and severe wheeze over this period of time in middle school children. In addition, the increase of prevalences of symptoms, diagnosis and treatment of atopic dermatitis was noted significantly. Risk factor analysis showed that body mass index (BMI), passive smoking and living with a dog or cat were associated with higher risk of wheeze. Also the occurrence of fever during infancy and the frequent use of antibiotics were associated with the risk of wheeze. In conclusion, during the 5 year period from 1995 to 2000, the prevalences of asthma, allergic rhinitis, and atopic dermatitis has increased in Korean children. BMI, passive smoking, living with a dog or cat, the fever episodes in infancy, and the frequent use of antibiotics in infancy are important risk factors to development of asthma and atopic dermatitis. In the near future, the birth cohort study will be needed to investigate the causes of this increase and the natural course of allergic diseases, then we develop the methods to control asthma and allergic diseases.
Adolescent ; Animals ; Anti-Bacterial Agents ; Asthma ; Body Mass Index ; Cats ; Child ; Cohort Studies ; Cough ; Dermatitis, Atopic ; Dogs ; Epidemiologic Studies ; Fever ; Food Hypersensitivity ; Humans ; Hypersensitivity ; Korea ; Parturition ; Prevalence ; Public Health ; Surveys and Questionnaires ; Rhinitis ; Rhinitis, Allergic, Perennial ; Risk Factors ; Tobacco Smoke Pollution

PURPOSE: To describe MR findings of recurred giant cell tumor of bone. MATERIALS AND METHODS: MR imagings of ten cases of pathologically proven recurrence of giant cell tumor were retrospectively analyzed. Location of recurrence, multiplicity of recurred tumor, signal intensity and homogeneity, pattern of gadolinium enhancement, soft tissue and articular surface involvement were evaluated. RESULTS: Tumors were located in peripheral portion of previous operation site(80%). Six cases recurred as multiple lesions. Tumor showed low signal intensity on T1 weighted images(100%), high signal intensity on T2 weighted images(100%) and inhomogeneous peripheral rim enhancing pattern(75%). Soft tissue and articular surface involvement were also demonstrated. CONCLUSION: We concluded that characteristic MR findings of recurred giant cell tumor could be helpful in early detection and precise evaluation of tumor recurrence.
Gadolinium ; Giant Cell Tumor of Bone ; Giant Cell Tumors* ; Giant Cells* ; Recurrence ; Retrospective Studies

No abstract available.
Humans* ; Tooth*

No abstract available.
Humans* ; Tooth*

No abstract available.
Child* ; Humans ; Leukemia, Myeloid, Acute* ; Typhlitis*

The purpose of this study was to compare microleakage and marginal hybrid layer in class V restorations using two one-bottle adhesives and one self-etching adhesive. Class V cavity preparations with occlusal margins in enamel and gingival margins in dentin were prepared on buccal and lingual surfaces of 30 extracted human molar teeth. Prepared teeth were randomly divided into three treatment groups (n=30) and restored with three adhesives and composites: Single Bond/Filtek Z-250 (Group 1), Prime&BondNT/Esthet.X (Group 2), UniFil Bond/UniFil F (Group 3). For microleakage, samples were stored in room temperature water for 24 hours, thermocycled, stained with 2% methylene blue dye, sectioned into halves, scored and analysed using Mann-whitney test and Wilcoxon signed rank sum test. For marginal hybrid layer, samples were sectioned into halves, treated with 10% phosphoric acid for 5 seconds, stored in 5% NaOCL solution for 24 hours, dried and gold coated. Occlusal and gingival margins of each sample were inspected under SEM. The results of this study were as follows; 1. Microleakage at the occlusal margins was not evident in group 1 and group 2, but it showed in group 3 (p<0.05). 2. Microleakage in group 1 and group 3 was significantly lower than in group 2 at gingival margins (p<0.05). 3. Microleakage at gingival margins was greater than at occlusal margins in group 1 and group 2, but microleakage at occlusal margins was greater than at gingival margins in group 3 (p<0.05). 4. In group 1 and group 2, no gaps at occlusal margins showed. But gaps showed in group 3. Occlusal margins were free from a hybrid layer in all groups. 5. The thickness of the marginal hybrid layers was 2.5~5 microm thick in group 5 microm thick in group 2 and 1.5 microm thick in group 3. 6. There was no corelation between microleakage and thickness of marginal hybrid layer. In coclusion, the effect of dentin adhesives on microleakge in class V composite restorations was excellent when one-bottle adhesives were applied on enamel margin, and it was good when a self-etching adhesive was applied on dentinal margin. There was no corelation between microleakage and thickness of marginal hybrid layer.
Adhesives ; Chimera ; Dental Enamel ; Dentin ; Humans ; Methylene Blue ; Molar ; Phosphoric Acids ; Tooth ; Water

BACKGROUND: Postmenopausal osteoporosis is the main problem in women, but senile osteoporosis is believed to occur after 65 years and affects men and women equally. Measurement of biochemical markers in conjunction with bone mineral density (BMD) determination can detect individual patients at the greatest risk of developing osteoporosis. METHODS: We measured serum osteocalcin levels as a bone formation marker, and urinary deoxypyridinoline (DPD) levels as a bone resorption marker, in 2190 men (from 22 to 83 year-old), and 1209 women (from 25 to 80 year-old). The age and sex related variations of serum osteocalcin and urinary DPD levels were analysed. The serum osteocalcin and urinary DPD levels were compared with BMD. These biochemical bone turnover markers were compared with each other. RESULTS: In women, serum osteocalcin and urinary DPD levels were increased with age from forties to sixties, after then showed decrease from seventies. In men, serum osteocalcin levels were slightly decreased with age, but DPD levels were slightly increased with age in men. These biochemical bone markers and BMD showed negative correlations. Osteocalcin and DPD levels showed positive correlations, especially in women. Osteocalcin levels were higher in men than women, age before fifth decades but lower in men than women after fifties. DPD levels was higher in women than men through all the age. CONCLUSION: Osteocalcin and DPD levels showed age and sex related variations in healthy Koreans. In management of patients with a risk of osteoporosis, consideration of variations according to the age and sex should be given.
Biomarkers ; Bone Density ; Bone Resorption ; Female ; Humans ; Male ; Middle Aged* ; Osteocalcin* ; Osteogenesis ; Osteoporosis ; Osteoporosis, Postmenopausal