background and objective: approximately 45% of benign peripheral nerve sheath tumors (pnst) occur in head and neck regions. malignant peripheral nerve sheath tumors (mpnst) are less common and only 8-15% of these tumors occur in head and neck region. in this study, we aimed at evaluating the demographic characteristics, pathologic findings, locations, main clinical presentations and family hist...

This study examined years of potential life lost (YPLL) before age 65 years to assess the relative impact of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) versus other leading causes of death on premature mortality in New York City, New York, between 1983 and 1994. Most causes of death showed substantial year-to-year variation in YPLL, with the exception of HIV/AI...

Ampullary neoplasms are one of the causes of obstructive jaundice. Endoscopic retrograde cholangiopancreatography (ERCP) is useful procedure for diagnosing and tissue sampling of ampullary neoplasms. Ampullectomy by resecting entire ampulla provides whole lesion for pathologic evaluation and also is appropriate for real pathologic staging for further management decision but ampullectomy conside...

Paper-strip electrophoretic studies using tris(hydroxymethyl)aminomethane-ethylene diaminetetraacetic acid-boric acid buffer were carried out on the serum of rats bearing primary methylcholanthrene-induced fibrosarcomas as well as 1st and 2nd transplant generation autografts and isografts of such tumors. It was found that, though bearing histologically similar tumors, serum of different rats pr...

BACKGROUND Studies on readmissions attributed to particular medical conditions, especially heart failure, have generally not addressed the factors associated with readmissions and the implications for health outcomes and costs. This study aimed to investigate the factors associated with 30-day unplanned readmission for 10 common conditions and to determine the cost implications. METHODS This ...

Paper-strip electrophoretic studies using tris(hydroxymethyl)aminomethane-ethylene diaminetetraacetic acid-boric acid buffer were carried out on the serum of rats bearing primary methylcholanthrene-induced fibrosarcomas as well as 1st and 2nd transplant generation autografts and isografts of such tumors. It was found that, though bearing histologically similar tumors, serum of different rats pr...