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191.
Intraosseous microcystic meningioma 总被引:2,自引:0,他引:2
Extradural ectopic meningioma is a rare tumor. We report on an example of microcystic meningioma arising in the skull of an
elderly woman. Radiological examination revealed a localized osteolytic lesion in the left parietal bone. At surgery, it was
discovered that the tumor was located within the skull without any evidence of extraosseous extension. The light microscopic,
immunohistochemical and ultrastructural features were consistent with a microcystic variant of meningioma. To our knowledge,
this is the first case of an intraosseous microcystic meningioma, and we believe that this type of meningioma should be considered
in the differential diagnoses of myxoid bone tumors of the calvarium.
Received: 10 January 2000 Revision requested: 21 February 2000 Revision received: 8 March 2000 Accepted: 13 March 2000 相似文献
192.
In Japan, hepatitis E had long been considered to be a rare liver disease which can be accidentally imported from endemic countries in Asia and Africa, where the sanitation conditions are suboptimal. However, since the identification of the first autochthonous hepatitis E case and hepatitis E viremic domestic pigs in Japan in 2001, our understanding of hepatitis E virus (HEV) infection in this country has been changing markedly. This has largely been due to the development of serological and gene‐based diagnostic assays, the accumulation of molecular epidemiological findings on HEV infection in humans and animals (as potential reservoirs for HEV in humans) and the recognition of the importance of zoonotic food‐borne and other routes of transmission of HEV, including blood‐borne transmission. Although it is now evident that autochthonous hepatitis E in Japan is far more common than was previously thought, clinical and subclinical HEV infections indigenous to Japan remain underdiagnosed and their prevalence is still underestimated due to the presence of unknown transmission routes and a low awareness of the infection status by many physicians in Japan. This review focuses on the features of HEV infection in humans and animals, as definitive or potential reservoirs for HEV, in Japan, and updates the current knowledge on the routes of transmission, including zoonotic routes, which are important for the maintenance and spread of HEV in Japan. 相似文献
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Susana Helm Scott K Okamoto Jay Maddock Donald Hayes Tonya Lowery Ranjani Rajan 《Hawai'i Journal of Medicine & Public Health》2013,72(2):66-69
This article briefly outlines a collaboration among communities on Hawai‘i Island and a university-based research team to develop, implement, and evaluate a school-based substance use prevention curriculum called Ho‘ouna Pono. In addition to providing a rationale for the project, the goal of this paper is fourfold. First, an overview of the Ho‘ouna Pono research results to date (2007–2013) is provided. Second, within this overview, the ways in which selected results informed program development are highlighted. Third, the curriculum is briefly described, and finally, the role of the students and community in the video production is described. 相似文献
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Extraocular sebaceous carcinoma accompanied by invasive squamous cell carcinoma: The first case report and consideration of histogenesis 下载免费PDF全文
Toshiaki Kogame Shuichi Ohe Fumikazu Yamazaki Hiroyuki Okamoto Takahiro Kiyohara 《The Journal of dermatology》2018,45(4):501-504
A 61‐year‐old man presented with a dome‐shaped nodule, 1.2 cm in size, with a central crater covered by keratinous material near the left lateral malleolus. Histological findings demonstrated a basophilic circular cone in the center, surrounded and sharply demarcated by a broad eosinophilic area. The central conical mass was composed mainly of atypical basaloid cells intermingled with scattered atypical sebaceous cells with scalloped nuclei and microvesicular cytoplasms, suggesting sebaceous carcinoma. The peripheral area consisted of atypical keratinizing squamoid cells without sebaceous cells, suggesting invasive squamous cell carcinoma. Atypical sebaceous cells were positive for adipophilin. Atypical basaloid cells were positive for 34βE12 and CAM5.2. Peripheral squamoid cells were positive for 34βB4 and 34βE12 throughout, and were positive for LHP1 in the superficial layer. We herein describe the first case of extraocular sebaceous carcinoma accompanied by invasive squamous cell carcinoma, which might have arisen from biphasic differentiation of cancer stem cells. 相似文献
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Periodic Protrusion of Right Coronary Cusp into Left Ventricular Outflow Tract Due to Detachment from the Aortic Annulus Complicated with Infective Endocarditis 下载免费PDF全文
Hanako Tokuda M.D. Mitsushige Murata M.D. Fumiyuki Yashima M.D. Mikihiko Kudo M.D. Hikaru Tsuruta M.D. Kazuma Okamoto M.D. Yuichiro Maekawa M.D. Motoaki Sano M.D. Hiroyuki Fukushima M.D. Hideyuki Shimizu M.D. Keiichi Fukuda M.D. 《Echocardiography (Mount Kisco, N.Y.)》2016,33(4):655-658
We describe the imaging of unusual dislocation of right coronary cusp into left ventricular outflow tract (LVOT) due to the infective endocarditis. Although the two‐dimensional echocardiography identified a protruding mass in LVOT, the three‐dimensional echocardiography precisely demonstrated the spatial anatomy of the aortic root, which was confirmed by the surgical operation, implicating the usefulness of three‐dimensional echocardiography in this rare anomaly. 相似文献
200.
Seigo Okada Ph.D. Yukiko Ishiguchi M.D. Yuji Moritoh M.D. Mayuko Shohi M.D. Naomi Nakagawa Ph.D. Kengo Okamoto M.D. Masahiro Kamada Ph.D. 《Echocardiography (Mount Kisco, N.Y.)》2016,33(7):1098-1100
Isolated left atrial appendage (LAA) ostial stenosis is a very rare entity found coincidentally in adults by transesophageal echocardiography. A 3‐month‐old healthy infant was suspected as having cor triatriatum. His brother had a history of surgical treatment of cor triatriatum. A cardiac catheterization revealed a narrowed ostium of the LAA and confirmed the echocardiographic diagnosis of isolated LAA ostial stenosis. This is the first pediatric case of idiopathic LAA ostial stenosis. The siblings called our attention to the differential diagnosis and the etiopathogenesis between LAA ostial stenosis and cor triatriatum. 相似文献