Satoshi Kawaguchi

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Pyogenic spondylitis can be life-threatening for elderly patients. To discuss the characteristics of the disease in the elderly, medical records of 103 consecutive cases of pyogenic spondylitis were reviewed. Of these, 45 cases were 65 years of age or older, and these 45 cases were enrolled into further study. In this study, the proportion of elderly(More)
BACKGROUND Extraskeletal myxoid chondrosarcoma (EMC) is a rare malignant neoplasm. Despite a consensus for the distinct clinicopathologic entity of EMC, its clinical features remain controversial. In addition, most studies have contained a small number of patients who underwent definitive surgical treatment. METHODS Forty-two cases of EMC, which had been(More)
With the goal of establishing efficacious peptide-based immunotherapy for patients with bone and soft tissue sarcomas, we previously identified the cytotoxic T lymphocyte-defined osteosarcoma antigenic gene Papillomavirus binding factor. The present study was designed to determine the status of HLA class I expression in osteosarcoma and other bone and soft(More)
BACKGROUND Elevated ErbB2 expression and gene amplification have been shown to be associated with poor prognosis in many cancers. Recently, it has been demonstrated that overexpression of ErbB2 protein in osteosarcoma is associated with the presence of pulmonary metastasis and decreased survival. By contrast, a previous study showed that the expression of(More)
Papillomavirus binding factor (PBF) was first identified as a transcription factor regulating the promoter activity of human papillomavirus. We previously demonstrated that PBF is an osteosarcoma-associated antigen and 92% of osteosarcoma tissues express PBF in the nucleus. Moreover, PBF-positive osteosarcoma has a significantly poorer prognosis than that(More)
BACKGROUND Whereas degeneration of the segment adjacent to lumbar fusion has been often seen on radiographs, a small number of patients with such degenerative changes undergo reoperation. Most follow-up studies have focused on adjacent segment disease based on analysis of radiographs. The present study was conducted to understand the pathology of(More)
STUDY DESIGN The herniated portion of the lumbar disc was analyzed immunohistochemically for inflammatory infiltrates to determine their immunophenotype. OBJECTIVE To investigate the pathomechanism behind spontaneous regression of herniated discs. SUMMARY OF BACKGROUND DATA Spontaneous regression of herniated intervertebral discs has been increasingly(More)
Aretrospective review was conducted of giant cell tumors treated between 1984 and 1998 using the technique of aggressive curettage through a large bone window followed by acrylic cement reconstruction. Fifteen patients with a mean follow-up time of 46 months (range, 24-188 months) were identified. One patient had a local recurrence 24 months(More)
STUDY DESIGN A case of posterior spinal cord syndrome in which magnetic resonance images showed predominant T2 hyperintense signal in the adjacent vertebral body is reported. OBJECTIVES To present the case for abnormal bone marrow magnetic resonance signal in the radiologic diagnosis of posterior spinal cord syndrome and to review its significance. (More)
Early relapse with distant metastasis often is observed in patients with cancer after resection of the primary tumor. It is considered that resection of the primary tumor induces activation of systemic angiogenesis and enhances progression of remote metastasis. The authors show that resection of the primary osteosarcoma tumor enhances progression of(More)