SUMMARY We report the CT myelography and MR findings of two cases of extraskeletal Ewing sarcoma involving the spinal epidural and paravertebral spaces in a middle-aged man (case 1) and a young woman (case 2). In both cases CT myelography showed epidural and paravertebral masses on one side, with widening of the ipsilateral neural foramina at the C5-C6 level in case 1 and at the C7-T1 level in ...

House dust mite allergen exposure is a postulated risk factor for allergic sensitization, asthma development, and asthma morbidity; however, practical and effective methods to mitigate these allergens from low-income, urban home environments remain elusive. The purpose of this study was to assess the feasibility and effectiveness of physical interventions to mitigate house dust mite allergens i...

Infections of the central nervous system (CNS) are important because of the many pathogens, the emerging and reemerg-ing of new infections, and the heavy burden they impose on health care system. The most formidable challenge is the increasing number of people at risk of developing CNS infections due to acquired immunodeficiency syndrome (AIDS) and the recipients of hemopoietic and solid organ ...

PURPOSE To evaluate the effect of autogenous platelet-rich plasma (PRP) for fresh-frozen allografts in tibial defect reconstruction in rabbits. METHODS 40 adult New Zealand white rabbits underwent tibial defect reconstruction with autografts (n=12), allografts without PRP (n=12), or allografts with PRP (n=12) and were observed for 12, 16, and 24 weeks (4 for each period). Tibias of the remain...

The ability of high-resolution MR imaging (1.5 T) to detect invasion of the cavernous sinuses by pituitary adenoma was determined through a retrospective review of 74 patients. These patients were divided into three groups: 25 normal subjects, 24 subjects with invasive pituitary adenomas, and 25 subjects with noninvasive pituitary adenomas. A fourth group of 30 patients, who subsequently underw...

The aim of this study was to improve the characteristics natural collapsible soils using geogrid-encased stone column technique. For purpose, 20 large-scale specimens columns were prepared rigid metal cylinders with a diameter 308 mm and height 97 154 according unit cell theory. aspect ratio 10% 25%. occurrence bulging failure, considered six times diameter. encased geogrids varying stiffness f...

Encased stone columns are vertical inclusions in soft soils formed by gravel wrapped usually with a geotextile. Their critical length is the one where further lengthening of column provides negligible improvement and it therefore not effective to build longer than it. This paper aims obtain common values using simplified two-dimensional axisymmetric full three-dimensional finite element analyse...

Abstract Quasiperiodic ornamental patterns represent only a small percentage of when compared to the entire body periodic patterns. Decagonal pattern is known since twelfth century Iran and fourteenth western Islam (Andalusia Morocco). A rich spectrum octagonal exists at latter localities (fourteenth later), whereas sole example dodecagonal comes from Morocco. Later copies exist in all these re...