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61.
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A 22 year old male presented with symptoms of diffuse muscle pain and multiple abnormal laboratory findings that were eventually attributed to tropical myositis. Computed tomography scan was more reliable than ultrasound and served as a guide to needle aspiration and pathologic diagnosis. 相似文献
63.
Triple-balloon dilation (TBD) of a variety of luminal structures has been successfully, though infrequently, used. A mathematical model is presented for the selection of balloon sizes, and equations and tables are derived that allow the user to estimate more accurately the size of balloons needed for TBD of structures with large lumina. With TBD, an approximately circular lumen can be formed. Also, TBD allows smaller, higher-pressure balloons to be used instead of single, low-pressure, large balloons. However, multiple puncture sites may be required for TBD. 相似文献
64.
Embolization of renal carcinoma 总被引:7,自引:0,他引:7
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F.?Markos T.?Ruane O’Hora C.?L.?Wainwright M.?I.?M.?NobleEmail author 《Pflügers Archiv : European journal of physiology》2012,463(5):679-684
The aim of the study was to examine features of the myogenic response of a conduit artery to the presence and absence of pulsatile
pressure. The iliac arteries of 16 anaesthetised pigs (10 in control conditions, 6 under sympathetic blockade) were instrumented
with flowmeter, sonomicrometry crystals for diameter measurement, a micro-tip manometer for pressure measurement and snares
placed proximally and distally to the crystals to isolate a test segment from the remainder of the arterial system. When the
snares were tightened to occlude the test segment, systemic arterial pressure remained constant. There was a large shift in
the pressure–diameter relationship, in that there was a rapid decline in test segment pressure for the same diameter. This
indicated arterial wall smooth muscle relaxation in response to removal of pulsatility of arterial pressure. The difference
in mean pressure between pulsatility present and absent was significant (p < 0.0001, paired t test, n = 10). Before proximal and distal occlusion, test segment pressure was (mean ± SD) 92.26 ± 12.39 mmHg, whereas after distal
and proximal occlusion at the same diameter, it was 42.34 ± 10.87 mmHg. We conclude that in the presence of pulsatile pressure,
there is a large proportion of arterial wall smooth muscle tone related to stretch of the arterial wall during the cardiac
cycle, indicating that, under normal pulsatile pressure conditions, much of the normal tone can be attributed to the pulsatile
component of the arterial myogenic response. 相似文献
69.
Hora M Urge T Eret V Stránský P Klečka J Kreuzberg B Ferda J Hyršl L Breza J Holečková P Mego M Michal M Petersson F Hes O 《World journal of urology》2011,29(3):349-354
Introduction
Tubulocystic renal carcinoma (TCRC) is a recently described neoplastic entity. To date, clinicopathological features on less than hundred cases of these rare tumours have been characterized exclusively in the pathological literature. Herein, we present five additional cases emphasizing clinical aspects on these rare renal neoplasms.Material and method
Cases diagnosed as TCRC were retrieved and reviewed from the routine and consultation files of the Pilsen tumour registry comprising over 20,000 cases of renal tumours.Results
All patients were men, mean age 56 years (range 29–70). Features on computed tomography (CT) were in two cases Bosniak III, one IV and two were solid tumours. In four patients, nephrectomy was performed, and one patient underwent resection. At the time of surgery, two patients had metastases. In one case, both primary tumour and metastases were active on FDG positron emission tomography (PET)/CT. Both patients with metastatic disease were treated with sunitinib with partial response. One patient died 26 months postoperatively and the other patient is alive 5 months after surgery. Three patients with localized tumours are without evidence of disease 31, 28 and 7 months after surgery. In one case, the resected tumour was histologically combined with a papillary renal cell carcinoma (PRCC).Conclusion
TCRC occurs predominantly in men with a wide age range. TCRC frequently displays a cystic component which may render a radiological classification of Bosniak III or IV. FDG PET/CT is helpful in the detection of metastases. TCRC has definitive malignant potential. Our findings support a possible relationship to PRCC. The tyrosine kinase inhibitor sunitinib may be used a therapeutical agent with partial response and temporary effect. 相似文献70.
Hora P 《Substance use & misuse》2007,42(2-3):471-473