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131.
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Osteogenic differentiation in dedifferentiated liposarcoma: a study of 36 cases in comparison to the cases without ossification
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134.
Endoscopic ultrasound‐guided antegrade biliary stenting for unresectable malignant biliary obstruction in patients with surgically altered anatomy: Single‐center prospective pilot study
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Tetsushi Sakuma Sayaka Hosoi Knut Woltjen Ken‐ichi Suzuki Keiko Kashiwagi Housei Wada Hiroshi Ochiai Tatsuo Miyamoto Narudo Kawai Yasunori Sasakura Shinya Matsuura Yasushi Okada Atsuo Kawahara Shigeo Hayashi Takashi Yamamoto 《Genes to cells : devoted to molecular & cellular mechanisms》2013,18(4):315-326
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Masahiro Shinya Adrian Popescu Caitlin Marchak Brian Maraj Keir Pearson 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》2012,223(3):405-414
A concept emerging from recent studies on obstacle avoidance in quadrupeds is that working memory of the height of an obstacle established by visual information is enhanced by motor interactions with the obstacle. In this investigation, we found that this concept is valid in adult humans when viewing and walking up stairs. The main finding was that the memory of the height of stairs was enhanced when information about stair height was gained by walking up a short flight of stairs compared to when information about stair height was gained by vision alone. By measuring the maximum toe clearance when subjects step onto a stair, we observed that maximum toe clearance increased after diverting vision from the stair for a few seconds prior to stepping. Most of this increase occurred within a 2-s period between diverting vision from the stair and initiating the step. By contrast, this increase in maximum toe clearance after diverting vision from a stair was significantly reduced after subjects walked up two stairs prior to stepping onto a stair without vision. This reduction persisted for delays as long as 10?s between diverting vision from the stair and initiating the step. In four of twelve subjects, the maximum toe clearance after these long periods without vision of the stair was close to the value when steps were made with full vision of the stairs. 相似文献
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Hiroyuki Miyatani Yukio Yoshida Shinya Ushimaru Noriyoshi Sagihara Shigeki Yamada 《Digestive endoscopy》2009,21(4):255-257
We report a rare case of flat‐type primary malignant melanoma of the esophagus treated with endoscopic mucosal resection (EMR). A 64‐year‐old woman was referred for examination of a small pigmented lesion located in the mid esophagus. On endoscopy, the lesion exhibited almost no change in size over the year. Cap‐assisted EMR was performed en bloc. The histopathological findings showed atypical melanocyte proliferation in the basal layer, spindle cells, and epithelioid cell proliferation with nuclear enlargement and a few mitotic figures. Histopathological examination confirmed the diagnosis of primary malignant melanoma. Immunostaining for S‐100 protein and HMB‐45 antibody were positive, and the Ki‐67 index was low. The patient was discharged without additional surgical resection and/or chemotherapy. The patient had no symptoms and no signs of recurrence 20 months after EMR. There has been no report on a slow growing esophageal melanoma. It is difficult to estimate the malignant behavior of this case. 相似文献