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Two autopsy cases of sacrococcygeal chordoma which showed sarcomatous components in the primary and metastatic tumors are reported. Case 1 was a 48-year-old female who died 9 years after the development of the initial symptoms. Autopsy findings showed metastatic tumors consisted of malignant tumor cells similar to fibrosarcoma and osteosarcoma. Case 2 was a(More)
BACKGROUND The appearance of interstitial fibrosis in polycystic kidneys is emblematic of progressive disease. Matrix forming this scar tissue is derived from local renal cells in response to cystogenesis. We investigated the phenotype of collagen-producing cells in the cystic kidneys of DBA/2-pcy mice to better characterize the spectrum of interstitial(More)
Laparoscopic inguinal hernia repair (LH) requires similar scar size to traditional open repair. To perform LH with minimal access, finer instruments were used. A 5-mm laparoscope was inserted from the umbilicus, and surgical instruments were inserted through 5- and 3-mm trocars to perform LH by the transabdominal preperitoneal approach. Polyester mesh was(More)
We conducted clinicopathologic and immunohistochemical analysis of five patients with malignant lymphoma complicating rheumatic diseases other than Sjögren's syndrome, and reviewed 26 cases of similar lesions reported in the Japanese literature over a 17-year period. All five patients were women ranging in age from 31 to 74 years (mean 55 years). Two of(More)
We report a 41-year-old male of citrullinemia associated with argininosuccinate acid synthetase deficiency. He was admitted to the Hitachi General Hospital because of finger tremor, restlessness and urinary incontinence. He had short stature and a poor appetite. Laboratory evaluation was summarized as follows: mild hypoglycemia, low plasma cortisol levels,(More)
OBJECTIVE The sonographic features of recurrent parotitis in children were studied to clarify a relationship between sonographic and sialographic findings in this disease. STUDY DESIGN Twenty-one glands (7 on follow-up) were examined by 7.5 MHz ultrasonography and sialography. Echo intensity level, distribution of the internal echoes, and size of(More)
The purpose of the present study was to evaluate the mechanical durability of a zirconia/alumina nanocomposite stabilized with cerium oxide (Ce-TZP/Al(2)O(3) nanocomposite) in comparison to yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and discuss its application on ceramic dental restorations. The disk-shaped specimens of both materials were(More)
During the past decade, zirconia-based ceramics have been successfully introduced into the clinic to fabricate fixed dental prostheses (FDPs), along with a dental computer-aided/computer-aided manufacturing (CAD/CAM) system. In this article (1) development of dental ceramics, (2) the current status of dental CAD/CAM systems, (3) CAD/CAM and zirconia(More)
Two types of tetragonal zirconia polycrystals (TZP), a ceria-stabilized TZP/Al2O3 nanocomposite (CZA) and a conventional yttria-stabilized TZP (Y-TZP), were sandblasted with 70-microm alumina and 125-microm SiC powders, then partially annealed at 500-1200 degrees C for five minutes. Monoclinic ZrO2 content was determined by X-ray diffractometry and Raman(More)
The purpose of this investigation was to examine the effect of filler particle size and shape as well as filler content on light transmittance characteristics and color of experimental composite resins. A mixture of 30 mol% Bis-GMA and 70 mol% TEGDMA was prepared as a base monomer and to which a photoinitiator (camphorquinone) and a co-initiator(More)