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A case of hemangiopericytoma of the soft palate with articulate disorder and dysphagia

International Journal of Oral Science 2013年第2期5卷 111-114页

作者： Yasuyuki Michi Miho Suzuki Kazuto Kurohara kiyoshi harada Maxillofacial Surgery Maxillofacial/Neck ReconstructionGraduate School of Medical and Dental SciencesTokyo Medical and Dental University

We report a case of hemangiopericytoma of the soft palate of 60-year-old patient, who noticed a mass of the soft palate and experienced difficulty in speaking. We found a pediculate, hard, elastic mass measuring 38 mm （cross-sectional diameter）. Computed tomography （CT） scans and dynamic magnetic resonance imaging （MRI） confirmed irregularly shaped mass and revealed a heterogeneous internal composition, consistent with vascular tumors. We excised the tumor under general anesthesia. Histopathological diagnosis was based on positive immunoreactivity of CD99 and vimentin and weak, positive staining of CD34. Three and half years following tumor excision, there is no recurrence or metastasis.

关键词： dysphagia hemangiopericytoma histopathological diagnosis

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A Case of Oral Squamous Cell Carcinoma with Scattered Metastases

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Open Journal of Radiology 2014年第3期4卷 270-274页

作者： Tadanobu Aragaki Yasuyuki Michi Shin Nakamura Akira Toriihara Kou Kayamori kiyoshi harada Tohru Kurabayashi Department of Oral and Maxillofacial Surgery Gunma Prefectural Cancer Center Gunma Japan Department of Oral and Maxillofacial Surgery Gunma Prefectural Cancer Center Gunma Japan Section of Maxillofacial Surgery Tokyo Medical and Dental University Tokyo Japan Section of Oral Radiology Tokyo Medical and Dental University Tokyo Japan Section of Oral Radiology Tokyo Medical and Dental University Tokyo Japan 4Department of Diagnostic Radiology and Oncology Tokyo Medical and Dental University Tokyo Japan Department of Diagnostic Radiology and Oncology Tokyo Medical and Dental University Tokyo Japan

We experienced a case of oral squamous cell carcinoma of the mandible with scattered distant metastases. After neoadjuvant chemoradiotherapy, the patient underwent segmental resection of the right mandible and right radical neck dissection. Surgical specimens confirmed remarkable nodal metastases. Unfortunately, the patient experienced a rapid fatal outcome, and numerous distant metastases were detected on autopsy. Moreover, postoperative 18F-fluorodeoxyglucose- positron emission tomography/computed tomography detected systemic distant metastases in this case. In our opinion, the use of preoperative FDG-PET/CT should be considered for patients with suspected poor prognoses.

关键词： Oral Cancer Distant Metastasis PET/CT Autopsy Vascular Invasion

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Evaluation of an oral moisture-checking device for screening dry mouth

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Open Journal of Stomatology 2013年第8期3卷 440-446页

作者： Yosuke Fukushima Tetsuya Yoda Shoichiro Kokabu Ryuichiro Araki Tsubasa Murata Yoshimasa Kitagawa Ken Omura Shuji Toya Kayoko Ito Saori Funayama Hiroshi Iwabuchi Kazuhiro Asano Yutaka Imai Akihide Negishi Satoshi Yokoo Goichi Matsumoto Eiro Kubota Hideki Watanabe Mikio Kusama Kojiro Onizawa Takuya Goto Seiji Nakamura Ryuichi Nakazawa kiyoshi harada Takashi Fujibayashi Community Health Science Center Saitama Medical University Saitama Japan Department of Dentistry and Oral Surgery Tochigi National Hospital Tochigi Japan Department of Oral and Maxillofacial Surgery Division of Medicine Interdisciplinary Graduate School of Medicine and Engi- neering Univer-sity of Yamanashi Kofu and Tamaho Japan Department of Oral and Maxillofacial Surgery Dokkyo Medical University School of Medicine Tochigi Japan Department of Oral and Maxillofacial Surgery Faculty of Medicine Sai-tama Medical University Saitama Japan Department of Oral and Maxillofacial Surgery Institute of Clinical Medicine University of Tsukuba Tsukuba Japan Department of Oral and Maxillofacial Surgery Jichi Medical University Tochigi Japan Department of Oral and Maxillofacial Surgery Kanagawa Dental College Yokosuka Japan Department of Stomatology and Oral Surgery Gunma University Graduate School of Medicine Maebashi Japan Division of Gereatric Dentistry Niigata University Medical & Dental Hospital Niigata Japan Oral and Maxillofacial Surgery Dry Mouth Clinic The Nippon Dental University Niigata Hospital Niigata Japan Oral Diagnosis and Medicine Department of Oral Pathobiological Science Graduate School of Dental Medicine Hokkaido University Sapporo Japan Oral Surgery Department of Oral Restitution Division of Oral Health Sciences Graduate School Tokyo Medical and Dental University Tokyo Japan Section of Oral and Maxillofacial Oncology Division of Maxillofacial Diagnostic and Surgical Sciences Faculty of Dental Science Kyushu University Fukuoka Japan

Objective: This multicenter clinical study was to assess the clinical usability of an oral moisture-checking device in detecting the dry mouth patients and evaluating the optimal measurement site. Materials and Methods: The study group comprised 250 patients with dry mouth and 241 healthy volunteer subjects at 13 medical centers. This device was used to measure the moisture degrees of the lingual mucosa and the buccal mucosa. Subjective oral dryness, objective oral dryness, and saliva flow rates were also compared between the two groups. For statistical analysis, receiver-operating characteristic analysis was performed to calculate the area under the curve (AUC). Results: The moisture degree of the lingual mucosa was significantly lower in the dry mouth group (27.2 ± 4.9) than that in the healthy group (29.5 ± 3.1, AUC = 0.653). When a lingual mucosa moisture degree of 31.0 or higher was defined as normal, less than 27.0 as dry mouth, and 27.0 to less than 31.0 as borderline zone of dry mouth, both the sensitivity and the specificity for the diagnosis of dry mouth were close to 80%. Conclusion: These results suggest that the oral moisture-checking device is a usable screening device for dry mouth.

关键词： Dry Mouth Oral Moisture-Checking Device ROC Analysis

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以龙胆紫染硫酸酯多醣类的组织化学意义

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动物学杂志 1960年第5期 211-211页

作者： kiyoshi ,harada ,艾民康

甲、方法:1)固定于任何固定液皆可,但以酒精为最合适。石蜡切片,厚3微来。切片脱蜡,降酒精,至蒸馏水。2)以龙胆紫(gentian violet)水溶液1∶250,000或1∶1,280,000染色24小时(即0.25毫升0.1%龙胆紫贮存液加入100毫升蒸馏水内;或以0.1毫... 详细信息

甲、方法:1)固定于任何固定液皆可,但以酒精为最合适。石蜡切片,厚3微来。切片脱蜡,降酒精,至蒸馏水。2)以龙胆紫(gentian violet)水溶液1∶250,000或1∶1,280,000染色24小时(即0.25毫升0.1%龙胆紫贮存液加入100毫升蒸馏水内;或以0.1毫升0.1%龙胆紫液加入128毫升蒸馏水内)。3)滤纸吸干切片,然后在亚尼林二甲苯(anilinc-xylene)1∶1或1∶2液内脱色及脱水约5分钟(或稍长),直至紫色不再从切片上脱下为止。以二甲苯洗2—3次,用树胶封片。若染透明质酸(hyaluronic anid)可以甘油封片。

关键词：小动脉

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Inactivation of severe fever with thrombocytopenia syndrome virus for improved laboratory safety

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Journal of Biosafety and Biosecurity 2020年第1期2卷 31-35页

作者： Toshihiko harada Shuetsu Fukushi Takeshi Kurosu Tomoki Yoshikawa Masayuki Shimojima kiyoshi Tanabayashi Masayuki Saijo Division of Biosafety Control and Research National Institute of Infectious DiseasesTokyoJapan Department of Virology 1 National Institute of Infectious DiseasesTokyoJapan

Severe fever with thrombocytopenia syndrome(SFTS),a tick-borne infectious disease with high mortality,is diagnosed by the serological testing of serum samples from patients in the acute and convalescent phases and/or by direct detection of the SFTS virus(SFTSV).Conventionally,heat and UV treatments have been used to inactivate the viruses present in serum samples before performing the serological ***,we examined the inactivation conditions optimal for SFTSV-containing serum samples to ensure the safety of laboratory workers while maintaining the accuracy of serological assay results *** human serum samples spiked with SFTSV to 60C for 30 min or exposing them to UV irradiation for 30 min,reduced the infectious virus titer below the limit of *** in sera from patients in the acute phase of SFTS was completely inactivated by heating to 60C for 30 min,followed by UV irradiation for 10 *** inactivation procedure had minimal impact on the performance of SFTSV antibody detection *** data provided herein can serve as a guide for laboratory workers and researchers working with SFTS serological tests.

关键词： Biosafety Inactivation Severe fever with thrombocytopenia syndrome(SFTSV) Serology

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