OBJECTIVES: This study aims to examine the regional differences for unmet dental need, while comparing 16 metropolitan cities in South Korea. Further, this study aims to examine the impacts of social determinants, which relates to the regional difference. METHODS: This is a cross-sectional study that analyzes the data, of the 4th round Korea National Health and Nutrition Examination Survey (KNHANES), in depth, as well as an ecologic analysis investigating each area as an aggregate unit. The data obtained from 24,871 subjects was stratified of 16 cities. The dependent variables were the unmet dental needs. There were 12 variables in social determinant, which have been approached by the social status, the social position, the economic status, the urbanization and access to resources. The sex-age adjusted standardization ratio was calculated and a descriptive statistical analysis was performed to compare the cities. The coefficient of variations was calculated. Social determinants affecting regional differences were analyzed through a multiple regression model. PASW statistics 18.0 (SPSS Inc., Chicago, IL, USA) was used. RESULTS: The unmet dental need between the 16 cities showed a 1.7 times the regional difference. On the other hand the unmet dental need, due to financial reason, showed a 3.3 times the regional difference. The correlation analysis showed that the unmet dental need was higher in single-person households, in welfarites and in severely deprived areas. The final regression analysis showed that the local deprivation index (beta=-17.19), the ratio of single-person household (beta=3.91), and the number of dentists per 10,000 population (beta=-2.30), were found to be statistically significant affecting the regional differences of unmet dental need (P<0.1). CONCLUSIONS: The unmet dental need in South Korea showed the regional difference, which was affected by the urbanization, the social position and resources of the areas among social determinants.
Chicago ; Cross-Sectional Studies ; Dentists ; Family Characteristics ; Hand ; Humans ; Korea ; Nutrition Surveys ; Republic of Korea ; Urbanization

PURPOSE: To evaluate the MR imaging findings of liposarcomas of different histologic subtypes. MATERIALS AND METHODS: We evaluated MR images of 21 patients (5 men and 16 women, mean age, 55 years) with liposarcoma andcorrelated the findings with the results of histopathology. In the study group seven liposarcomas werewell-differentiated, seven were myxoid, three were mixed, two were pleomorphic, and one was round cell. RESULTS: On T1 -and T2 - weighted images, six of seven well-differentiated liposarcomas showed signal intensity equal tothe fat and hypointense septa, while the other showed low signal intensity on a T1 -weighted image, heterogeneoushigh signal intensity on a T2- weighted image, heterogeneous enhancement after the administration of contrastmedia and was dedifferentiate. Nine masses in seven patients with myxoid liposarcoma showed low signal intensityon T1-weighted images, six of the nine showed lace-like foci of high signal intensity. On T2 -weighted images, allmasses showed homogeneous high signal intensity. After administration of contrast media, five of seven massesshowed heterogeneous enhancement. Two of three mixed form were well-differentiated and myxoid types, and twosubtypes were separable on MR. Pleomorphic, round cell, mixed type myxoid and pleomorphic and unclassified casesshowed low signal intensity on T1-weighted images, heterogeneous high signal intensity on T2-weighted andheterogeneous enhancement. CONCLUSION: Using MR imaging, well-differentiated and myxoid liposcarcomas may bedifferentiated from other types.
Contrast Media ; Female ; Humans ; Liposarcoma* ; Liposarcoma, Myxoid ; Magnetic Resonance Imaging ; Male

The hemangiopericytoma originated from the greater omentum is a very rare vascular tumor and grows to a large mass without symptoms for a long period. The diagnosis can be made on ultrasonogram, CT or MRI and angiogram with the findings of well circumscribed, solitary mass with hypervascularity in the abdominal cavity especially retroperitoneal cavity. The surgical treatment is recommended due to its possibility of malignant potential and metastasis on diagnosis. The evaluation of differential diagnosis to rule out this tumor is obligatory if a large solitary movable mass being palpated in abdomen. We experienced a case of hemangiopericytoma of greater omentum which was diagnosed as a left ovarian tumor preparatively, and we report the case with brief review of the literatures.
Abdomen ; Abdominal Cavity ; Diagnosis ; Diagnosis, Differential ; Hemangiopericytoma* ; Magnetic Resonance Imaging ; Neoplasm Metastasis ; Omentum* ; Ultrasonography

The hemangiopericytoma originated from the greater omentum is a very rare vascular tumor and grows to a large mass without symptoms for a long period. The diagnosis can be made on ultrasonogram, CT or MRI and angiogram with the findings of well circumscribed, solitary mass with hypervascularity in the abdominal cavity especially retroperitoneal cavity. The surgical treatment is recommended due to its possibility of malignant potential and metastasis on diagnosis. The evaluation of differential diagnosis to rule out this tumor is obligatory if a large solitary movable mass being palpated in abdomen. We experienced a case of hemangiopericytoma of greater omentum which was diagnosed as a left ovarian tumor preparatively, and we report the case with brief review of the literatures.
Abdomen ; Abdominal Cavity ; Diagnosis ; Diagnosis, Differential ; Hemangiopericytoma* ; Magnetic Resonance Imaging ; Neoplasm Metastasis ; Omentum* ; Ultrasonography

Invasive mole is a malignant form of hydatidiform mole and can be seen occasionally. It invades the myometrium, adjacent structures and metastasizes distantly. It can initially appear with symptoms of the respiratory, genitourinary system, or rarely intraperitoneal hemorrhage. However, reports of invasive mole initially presenting symptom of brain metastasis is rare and is occasionally found at autopsy. We report a case of invasive mole which had metastasized to the brain and lung and initially presented with symptoms of brain metastasis.
Animals ; Autopsy ; Brain* ; Female ; Hemorrhage ; Hydatidiform Mole ; Hydatidiform Mole, Invasive* ; Lung ; Mice ; Myometrium ; Neoplasm Metastasis* ; Pregnancy ; Urogenital System

Twenty-two children(4 months to 17 years old)with a clincial diagnosis of complex partial seizure(CPS) were examined with a 0.5T MRI scanner using spin-echo sequences. Eleven patients showed abnormal brain MRI findings; two had focal lesions with corresponding seizure foci on the EEG, one arising from temporal lobe(Hippocampal Formation atrophy) and the other from the frontal lobe. Nine patients showed diffuse lesions with inconsistent seizure foci on EEG. The remaining 11 patients were normal on bran MRI; two of them had normal EEG findings and the others either focal or diffuse abnormalities on EEG.
Brain* ; Child* ; Diagnosis ; Electroencephalography ; Frontal Lobe ; Humans ; Magnetic Resonance Imaging* ; Seizures*

No abstract available.

Acetabular fracture can result in severe limitation of the motion of the hip joint, which supports totalweight of human body. Beause of different methods of surgical approach a ccording to fracture type, preciseinterpretation of X-ray films of acetabular fracture is required. We reviewed 38 cases of simple X-ray filmsshowing acetabular fracture. The results were as follows: 1. Almomst 60% of the cases-were in their 2nd and 3rddecades. 2. Twenty cases were male, and 18 cases were female. 3. The most common cause of the injury was trafficaccident(33 cases, 86.8%), followed by fall down (4 ases, 10.5%) and slip down(1 case, 2.7%). 4. Elementaryfractures were 21 cases(55.3%) and associated fractures were 17 cases(44.7%). 5. Among elementary fractures,posterior wall fractures were 9 cases(23.7%), followed by anterior column fractures(8 ases, 21.1%), anterior wallfractures(4 cases, 10.5%). 6. Among associated fractures, T-shaped fractures were 8 cases(21.1%), followed by bothcolumn fractures(6 cases, 15.8%), anterior and hemitransverse fractures(3 cases, 7.8%). 7. Other pelvic bonefractures associated with the acetabular fracture were as follows: farcture of contralateral pubic rami(6 ases,15.8%) contralateral iliac bone (1 case, 2.6%) and ipsilateral iliac bone (1 case, 2.6%). 8. Injuries of otherorgans adjacent to the acetabulum were as follows: rupture of the bladder (3 cases, 7.9%), urethra(2 cases, 5.3%)and uterus (1 cases, 2.6%).
Acetabulum ; Female ; Hip Joint ; Human Body ; Humans ; Male ; Rupture ; Urinary Bladder ; Uterus ; X-Ray Film

The vein of Galen malformation is a rare midline intracranial arteriovenous malformation. The majority of themalformations were seen in neonate, infancy and childhood, and the clinical symptoms and prognosis depended on ageof presentation. The authors report a case of the vein of Galen malformation in 17 month-old female withhydrocephalus, which is confirmed by CT and digital subtraction angiography.
Angiography, Digital Subtraction ; Cerebral Veins ; Female ; Humans ; Infant, Newborn ; Intracranial Arteriovenous Malformations ; Prognosis ; Veins

The advent of computerized cranial tomography made a greater advance in the diagnosis of very wide variety of intracranial lesions. Authors analyzed 58 pathologically proven sellar and parasellar tumors examined at Kyung Hee Un-iversity Hospital from Oct. 1977 to Jun. 1981 and the results were as follows; 1. The distribution of the tumors is 28 pituitary adenomas, 18 craniopharyngiomas, 5 meningiomas, 4 germinomas, 2 astrocytomas, and 1 sphenoid mucocele. 2. In pituitary adenoma, the precontrast CT scan of tumors appeared as isodensity in 11 cases, mixed density in 8 cases, high density in 6 cases, and low density in 3 cases, and associated with destruction of sellar turcica in 15 cases, calcification in 3 cases, and hydrocephalus in 2 cases. The postcontrast CT scan study revealed 24 cases of contrast enhancement, including 17 cases of homogenous and 7 cases of ring or rim enhancement. 3. In craniopharyngioma, the precontrast CT scan of tumors appeared as low density in 12 cases, isodensity in 4 cases and high density in 2 cases and associated with calcification in 16 cases, hydrocephalus in 15 cases and destruction of sellar turcica in 2 cases. The postcontrast CT scan study revealed no enhancement in 10 cases and contrast enhancement in 8 cases including 6 of ring enhancement and 2 heterogenous enhancement.
Astrocytoma ; Craniopharyngioma ; Diagnosis ; Germinoma ; Hydrocephalus ; Meningioma ; Mucocele ; Pituitary Neoplasms ; Tomography, X-Ray Computed