This is a case report of multiple coil embolization for the diffuse pulmonary arteriovenous malformations(PAVM). PAVMs are direct communications between pulmonary arteries and pulmonary veins, resulting in an anatomic right-to-left shunt that may cause paradoxical embolization to may occur, resulting in neurologic complications such as stroke or cerebral abscess. The treatment of choice for solitary PAVMs was limited to surgical resection or ligation of the PAVM but, multiple PAVMs present a difficult management problem, since surgical resection is not feasible in most instances. The coil embolization is a safe and effective treatment of multiple PAVMs. Our exprience was of a 5-year-old boy who had cyanosis and clubbing of his finger, and was diagnosed with multiple PAVMs by chest CT and pulmonary angiography. The coil embolization was peformed, thirteen vessels were successfully occluded and no complication in placement of coils occured. Embolization therapy should be performed in all cases of PAVMs to prevent neurologic complications.
Angiography ; Arteriovenous Malformations* ; Brain Abscess ; Child, Preschool ; Cyanosis ; Embolization, Therapeutic* ; Fingers ; Humans ; Ligation ; Male ; Pulmonary Artery ; Pulmonary Veins ; Stroke ; Tomography, X-Ray Computed

PURPOSE: The purpose of this study was to evaluate the morphologic changes of the injured hepatic acini following ligation of common bile duct and to investigate the pathophysiologic process of hepatic failure and biliary liver cirrhosis in the extrahepatic cholestasis. MATERIALS AND METHODS: The common bile ducts of 18 rabbits were ligated partially. The rabbits were killed and selective microangiography was carried out with infusion of barium suspension via portal vein 4 to 24 weeks after ligation. Selective microangiography was also carried out in two normal rabbits. The microangiographic findings were evaluated and correlated with histopathologic features. RESULTS: The sinusolds of the liver acinus showed distortion, varying degrees of luminal widening, and irregularities in architecture. Terminal branches of the portal vein (TPV) showed increased number of branches, luminal narrowing, tortuosity, distortion, and beaded appearance. Peribiliary plexi were found as thin curvilinear, barium-filled structures along the wall of the dilated bile duct. The microangiographic findings were well correlated with histopathologic findings. The grades of microangiographic and histopathologic findings were poorly correlated with the duration of the ligation of CBD. CONCLUSION: Changes in microvasculature of the liver acinus following partial ligation of common bile duct were demonstrated by microangiography. Although the microvascular changes were evoked secondary to the injury, they might have some active roles in the pathophysiologic process in the liver.
Barium ; Bile Ducts ; Cholestasis, Extrahepatic ; Common Bile Duct* ; Ligation* ; Liver Cirrhosis ; Liver Failure ; Liver* ; Microvessels ; Phenobarbital ; Portal Vein ; Rabbits

Clinical and Bacteriological studies were carried out on 57 cases of infants and children with shigellosis who were cared from January, 1976 to December, 1980 in our hospital. The results were as follows: 1. The age distribution revealed the range between 6 months and 5 years(85% of all) with sex ratio of 30(53%) of male and 27(47%) of female, 1.1:1. 2. The peak incidence was noted in summer, althought there were occurrence throughout the year, even in winter. 3. On bacteriological studies, Shigellan flexneri was isolated most frequenty(90%) and Shigella sonnei was the next(8.8%). 4. Only 8.3% of Shigella strains were resistant to ampicillin between 1976 and 1977 but resistance increased to 76.7% in 1980. Gentamicin and Kanamycin which are aminoglycosiides were quite effectived but their use was limited becauseof their nephrotoxicity. 5. The average duration from the onset to the clinical improvement including stool character in the 32 ampicillin treated patients was 3.6 days and in the 25 rifampin treated patients was 2.2 days. Rifampin was effective in eradicating the shigella stralins and stool cultures taken at 7th therapeutic day remained negative in all 25 rifampin treated patients but yielded growth of shigella strains in 13 ampicillin treated patients. There was no doubt that rfaimpin was superior to ampicillin for bacillary dysentry. 6. One of these 57 cases was expired and motality rate was 1.8%.
Age Distribution ; Ampicillin ; Child ; Dysentery, Bacillary* ; Female ; Gentamicins ; Humans ; Incidence ; Infant ; Kanamycin ; Male ; Rifampin ; Sex Ratio ; Shigella ; Shigella sonnei

We report a 16-month-old male with a primitive neuroectodermal tumor of the cerebellar hemisphere. This tumor consisted of undifferentiated cells resembling germinal or matrix cells of the embryonic neural tube and prominent mesenchymal component.
Cerebellum* ; Humans ; Infant ; Male ; Neural Tube ; Neuroectodermal Tumors, Primitive*

No abstract available.
Brain* ; Tomography, Emission-Computed, Single-Photon*

Color Doppler echocardiographic examination was performed to detect and evaluate semiquantitatively the severity of mitral regurgitation in 38 patients who underwent left ventriculography. The sensitivity and specificity of the technique in the detection of mitral regurgitation was 84% and 100% as compared with left ventriculography.Mitral regurgitation in the false negative cases was mostly mild. On the bases of the farthest distance reached by the regurgitation flow signal from the mitral value orifice, the severity of regurgitation was graded on a four point scale and these results were compared with those of angiography. A significant correlation(r=0.87) was found between Doppler imaging and angiography in the evaluation of the severity of mitral regurgitation.Also results was obtained for the evaluation based on the area covered by the regurgitant signals in the left atrial cavity & the regurgitant jet area(RJA) experssed as a percentage of the left atrial are(LLA) obtained in the same plane(RJA/LLA%). In conclusion, Color Doppler echocardiography is a useful noninvasvive thechique that is not only sensitive and specific in the identification of mitral regurgitation but also provides accurate estimation og its severity.
Angiography ; Echocardiography ; Echocardiography, Doppler, Color ; Humans ; Mitral Valve Insufficiency* ; Sensitivity and Specificity

An anomalous systemic arterial supply to the normal basal segments of the left lower lobe without sequestration is a rare congenital anomaly. It differs from classical bronchopulmonary sequestration in that the involver lung retains a normal connection to the bronchial tree, although some place this entity exists within the broad framework of pulmonary sequestration. We experienced a case of a woman who presented with a nodular lesion on a chest X-ray. Contrast-enhanced CT diagnosed her as having an anomalous systemic arterial supply to the normal basal segments of the left lower lobe. This case is reported with a brief literature review.
Bronchopulmonary Sequestration ; Female ; Humans ; Lung* ; Thorax ; Tomography, X-Ray Computed ; Trees

OBJECTIVE: The objective of this study was to investigate the morphologic characteristics between the vertebral body and the regions of the cervical and thoracic spinal cords where each rootlets branch out. METHODS: Sixteen adult cadavers (12 males and 4 females) with a mean age of 57.9 (range of 33 to 70 years old) were used in this study. The anatomical relationship between the exit points of the nerve roots from the posterior root entry zone at each spinal cord segment and their corresponding relevant vertebral bodies were also analyzed. RESULTS: Vertical span of the posterior root entry zone between the upper and lower rootlet originating from each spinal segment ranged from 10-12 mm. The lengths of the rootlets from their point of origin at the spinal cord to their entrance into the intervertebral foramen were 5.9 mm at the third cervical nerve root and increased to 14.5 mm at the eighth cervical nerve root. At the lower segments of the nerve roots (T3 to T12), the posterior root entry zone of the relevant nerve roots had a corresponding anatomical relationship with the vertebral body that is two segments above. The posterior root entry zones of the sixth (94%) and seventh (81%) cervical nerve roots were located at a vertebral body a segment above from relevant segment. CONCLUSION: Through these investigations, a more accurate diagnosis, the establishment of a better therapeutic plan, and a decrease in surgical complications can be expected when pathologic lesions occur in the spinal cord or vertebral body.
Adult ; Cadaver ; Humans ; Male ; Spinal Cord

PURPOSE: To evaluate the clinical significance of hyperechogenicity of the renal medulla and urinary bladder in normal neonates. MATERIALS AND METHODS: We investigated 31 clinically normal neonates, including one post-term, 16 pre-term, and 14 full-term babies, in whom hyperechogenicity of the renal medulla or urinary bladder was seen on ini-tial sonograms. All neonates underwent sonography while aged between 1 and 21 (mean: 2.5)days. For 14, fol-low-up sonography was performed 2-20 (mean : 6.8) days later. Eighteen neonates also underwent urinalysis, and two underwent a bacteriologic examination. RESULTS: Initial sonograms revealed (hyperechogenicity in the renal medulla (n=28) and urinary bladder (n=12). Twenty-five neonates were aged less than one week, four were aged 1-2 weeks, and two were aged 2-3 weeks. Urinalysis showed that six neonates were erythrocyte-positive (+/-:1, +1:4, +4:1), two were protein-pos-itive (+/-:2), and the others were negative. In all cases the results of bacteriologic study were negative. Follow-up sonography revealed that the hyperechogencity of renal medulla had regressed (n=12) or decreased (2), and that of the urinary bladder had regressed (n=4). CONCLUSION: In clinically normal neonates, hyperechogenicity of the renal medulla and urinary bladder was mostly visualized within the first week of life, and on follow-up sonography was seen to have regressed or decreased.
Follow-Up Studies ; Humans ; Infant, Newborn* ; Urinalysis ; Urinary Bladder*

To identify the corresponding cord segment for each root at the level of conus medullaris, a dissecting microscopic study was carried out on the spinal cord of 14 adult cadavers. We measured following contents:1) the longitudinal extent of the medullary segment of origin of each root:2) the distance from the lowest rootlet of the conus to the highest portion of the medullary segment of each root:3) the distance from the conus tip to the lowest portion of the medullary segment of each root:4) the morphological features of root-spinal cord juncton, intrathecal anastomoses, and others. We measured on the basis of the last rootlet ecause of no clear distinction between the conus and filum terminale. Our values showed considerable variation from one case to another. The average length of the whole lumbar and sacral segment was 50 mm and 30 mm, respectively. The S-1 root was the largest. Intrathecal intersegmental anastomoses were found in all cases examined, and usually consisted of small caliber rootlets connecting the spinal roots of adjacent segments. We emphasize the importance of microsurgical structure of conus medullaris when performing an operation of dorsal root entry zone or myelotomy for the relief or spasticity or intractable pain of lower extremities.
Adult ; Cadaver ; Cauda Equina ; Conus Snail* ; Humans ; Lower Extremity ; Muscle Spasticity ; Pain, Intractable ; Spinal Cord ; Spinal Nerve Roots