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排序方式: 共有1266条查询结果,搜索用时 15 毫秒
1.
Masanori Hisaoka Takatoshi Aoki Hiromi Kouho Hirofumi Chosa Hiroshi Hashimoto 《Skeletal radiology》1997,26(3):191-194
The case of a 49-year-old man with Maffucci’s syndrome, who developed multiple spindle cell hemangioendotheliomas, is presented.
The case provides support for recent reports suggesting an association between this peculiar vascular lesion and skeletal
enchondromatosis. 相似文献
2.
Takatoshi Tsuda 《Annals of nuclear medicine》1992,6(3):159-168
A continuous cell line, named SMC R86 F1, was established from a surgically resected primary thyroid lesion. The cell grew as an adhering monolayer with a doubling time of about 25 hours in modified Eagle's medium supplemented with fetal bovine serum. When the cells were transplanted into athymic nude mice, tumors developed at the site of inoculation. The cells not only showed epithelial origin upon light and electron microscopic examination but also possessed a biosynthetic marker human thyroglobulin (hTg). In order to examine the iodide trapping ability of the xenografts, radioiodine at doses of 3.7 MBq was injected into the peritoneum of 131I treated nude mice bearing xenografts at about 4 weeks after the cell inoculation. Judging from the results of scintigraphic, autoradiographic and biodistribution studies, viable tissue of the xenografts in the treated mice had the ability to trap radioiodine. Histological sections of the xenografts resected from the treated mice consisted of follicle-like and trabecular growing structures, and immunohistochemically the cytoplasm of the tissues was hTg positive. The cells possessed the ability to trap radioactive iodine in vitro under the control of TSH. In addition, the expression of iodinated 19S Tg in the cell cytoplasms in the monolayer cultures was revealed by immunoblotting and autoradiographic assays. These observations provide strong evidence that the SMC R86 F1 cell line possesses well-differentiated properties of the malignant thyroid follicular epithelial cells. 相似文献
3.
Seigo Kinuya Shiro Takahashi Motoyasu Saito Yohei Tofuku Takatoshi Michigishi Norihisa Tonami 《Annals of nuclear medicine》1996,10(2):261-264
Thallium-201 SPECT was performed to evaluate a pulmonary lesion in a 73-year-old male which had been considered to be an inflammatory lesion for two years. The lesion has slowly increased in size on x-CT. Tl-201 was intensely taken up and retained in the lesion, suggesting a malignant lesion. Histological examination revealed that the lesion was bronchioloalveolar carcinoma. This case suggested that Tl-201 uptake of pulmonary carcinoma would not be necessarily related to cell growth rate. 相似文献
4.
Nakajima K Kinuya K Mizutani Y Hwang EH Michigishi T Tonami N Kobayashi K 《Annals of nuclear medicine》1999,13(1):5-11
Technetium-99m labeled diethylenetriaminepentaacetic acid (DTPA)-galactosyl human serum albumin (GSA) has been used for hepatocellular functional evaluation. This study proposed new and simple parameters to overcome the limitations of conventional parameters, and they were applied to the clinical staging of chronic liver dysfunction. The study group consisted of 93 patients including 81 with liver dysfunction and 12 control patients. In addition to the two conventional parameters, namely, receptor index (LHL15 = liver count divided by the sum of liver and heart counts at 15 minutes) and clearance index (HH15 = heart count at 15 minutes divided by the heart count at 3 minutes), 6 new parameters for Tc-99m GSA uptake and clearance were generated. The conventional receptor index of LHL15 showed a large variation depending on the size of region of interest (ROI) over the heart. The LHL15 normalized by the ROI size (nLHL15) showed more stable data and a better separation of mild liver dysfunction. A hyperbolic relationship between the LHL15 and HH 15 changed to a linear relationship by using the nLHL15 index. The combination of the liver to heart average count ratio at 15 minutes (LH 15) and T-half (minute) of the heart count also could differentiate each stage well. In conclusion, the use of the ROI-area normalized nLHL is recommended instead of the conventional LHL15. The indices of LH15 and T-half could be alternatively used as practical parameters for clinical staging in liver function. 相似文献
5.
We report a case of chordoma containing a spindle cell sarcomatoid component with a gradual transition from conventional chordoma.
Immunohistochemically, many tumor cells in both conventional chordoma and sarcomatoid components were positive for cytokeratins
(AE1/AE3, CAM5.2) and epithelial membrane antigen as well as vimentin. This report provides a rare example of sarcomatoid
chordoma. Familiarity with this type of bone tumor should help to avoid confusion with dedifferentiated chordoma and other
spindle cell sarcomas or carcinomas.
Received: 25 February 2000 Revision requested: 28 March 2000 Revision received: 30 May 2000 Accepted: 28 June 2000 相似文献
6.
7.
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
8.
Yuzo Deguchi Takatoshi Maeno Yuichi Hori Nobuyuki Hiruta Daisuke Sasai Yukihiro Sato 《Case reports in ophthalmology》2014,5(2):226-230
Introduction
To report a case in which intraocular silicone oil migrated into the upper eyelid and caused ptosis.Methods
A 65-year-old woman presented with proliferative vitreoretinopathy in the right eye. Vitrectomies, injection of silicone oil and encircling were performed. Two months after the last operation, swelling of her right eyelid occurred.Result
Magnetic resonance imaging revealed moisture in the palpebral fat tissue. We incised the bulbar conjunctiva and confirmed silicone oil leakage from the vitreous cavity through the scleral button hole of the encircling suture. Postoperatively, the right upper eyelid swelling decreased. Histopathologically, dense macrophage infiltration was seen in the palpebral tissues.Conclusions
We report a rare case with a postoperative complication caused by silicone oil. In cases with swelling of the eyelid and decreased silicon oil in the vitreous cavity postoperatively, clinicians should consider the possibility of silicone oil leakage.Key words: Migration of silicone oil, Upper eyelid, Vitrectomy, Scleral buckling, Postoperative complication, Ptosis 相似文献9.
Takatoshi Aoki Toshihiro Miyamoto Yasuo Mori Goichi Yoshimoto Takuji Yamauchi Kenjiro Kamezaki Katsuto Takenaka Hiromi Iwasaki Naoki Harada Koji Nagafuji Nobuyuki Shimono Takanori Teshima Koichi Akashi 《Mycoses》2011,54(4):e255-e259
Invasive aspergillosis (IA) is an important cause of infectious morbidity and mortality in patients who undergo haematopoietic stem cell transplantation (HSCT). History of IA before allogeneic HSCT is still challenging because of the high risk of recurrence after HSCT. Recent advances in early‐stage diagnosis and new, more effective classes of antifungal agents have improved the management of IA in the HSCT recipients. We report two cases with acute myelogenous leukaemia after primary failure of induction chemotherapy with the patients developing pulmonary IA. They responded well to a combination of voriconazole (VCZ) and micafungin, resulting in a remarkable reduction of pulmonary IA lesions at short intervals. Thereafter, antifungal therapy was switched to liposomal amphotericin B (L‐AmB), followed by conditioning regimen for allogeneic HSCT, because of the possibility of VCZ altering the metabolism of chemotherapeutic agents and calcineurin inhibitors. Successful engraftment was achieved without severe adverse side‐effects or aggravation of IA after HSCT. Combining VCZ with micafungin followed by L‐AmB throughout HSCT could be advantageous in stabilising IA in HSCT patients. 相似文献