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We report a rare case of carcinosarcoma of the ureter presented as a retroperitoneal tumor. The tumor originated in the ureter as a polypoid protrusion and spread around peri-ureteral, retroperitoneal tissues. The polypoid ureteral tumor was composed of an intra-epithelial carcinoma and a submucosal mesenchymal tumor; the histology of the retroperitoneal(More)
A 25-year-old male with neurofibromatosis type 2 had hearing restored with an auditory brainstem implant (ABI) after removal of an acoustic schwannoma. The ABI allows the patient to discern many different environment sounds and is a significant adjunct to lip-reading, enabling conversation with people who have clear pronunciation without the necessity for(More)
Monolayer cultures of hepatocytes were shown to have good function when compared with suspended cells. The authors manufactured a new hybrid artificial liver containing hepatocyte monolayers and evaluated its function. Hepatocytes isolated from an adult dog liver were cultured on collagen coated borosilicated glass (10 X 20 X 0.04 cm). A long-stroke(More)
  • F Kumagai
  • Journal of cross-cultural gerontology
  • 1987
For the purpose of testing an assumption on the dual nature of aging in Japanese society, this study compared and contrasted three-generation adult families in Yamato-machi, a rural town in Niigata Prefecture in northern Japan, and in Setagaya-ku, an urban ward in Tokyo. The average ages for each generation in the study were G1 = 85, G2 = 60, and G3 = 35.(More)
Optic neuritis is a clinical syndrome resulting from inflammation, demyelination, or infection of the optic nerve. Among several developed diagnostic procedures, the visually evoked cortical potential (VECP) has become a good tool to prove the impairment of the optic nerve. PVECP later became known to be closely related with ophthalmic conditions. In the(More)
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