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患者男性,73岁。因右腰部偶有不适,查体发现右肾占位入院。CT检查示右侧肾脏存在实性占位性病变,恶性肿瘤可能性大。专科检查无明显阳性体征。彩超示右肾体积增大,肾上极可见一8.4 cm×7.5 cm×7.3 cm大小的低等回声占位,边界尚清,占位可见血流信号;左肾大小正常,实质回声均匀,皮髓质界限清晰。术中见右肾增大,于肾上极见一肿物,直径约8 cm,手术切除右肾送病理检查。 相似文献
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肾集合管癌2例 总被引：1，自引：0，他引：1
例1,女性,41岁,反复无痛性血尿伴右腰酸痛10天入院。体检:右肾区轻扣击痛。CT示右肾中极后外侧有一2·5cm×2·8 cm×4·0 cm肿块,中间可见点状高密度影,肿块平扫稍高于肾实质密度,增强后强化较明显,境界清晰,似有包膜,考虑为肾癌。右肾动脉造影示右肾中极血管受压改变。在腹腔镜下行右肾根治性切除,术中见右肾略增大,切开见中部占位性病变,直径约3·5 cm,肾周淋巴结未见明显肿大。病理检查:肾脏1个,大小11 cm×6 cm×4 cm,剖面中部肾实质内见一灰白色肿块,大小4 cm×3 cm,边界清,质偏硬。镜检:癌细胞排列成不规则腺管状或管状乳头状、片巢… 相似文献
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Properties of chemoreceptors of tongue of rat 总被引：14，自引：0，他引：14
BEIDLER LM 《Journal of neurophysiology》1953,16(6):595-607
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A further analysis of already published data supports the position that retardates of low ability level less frequently have retarded siblings, retarded parents, and parents low in occupational level than do retardates higher in ability level. The analysis supports the position that there are two types of retarded individuals, persons retarded as a result of gene or chromosomal anomalies, brain injury, etc., who more frequently occur in the lower-level retardate group, and persons whose retardation represents polygenic segregation, who more frequently occur in the higher-level group. 相似文献
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Eighteen families in which both parents had refractions within the range of +4·0 D to −4·0 D and axial lengths seen in emmetropia (22·3-26·0 mm) showed coefficients of correlation of the order 0·5 indicative of polygenic inheritance. Such coefficients were seen for axial length (0·407) and for the cornea (0·487), but not for the lens (which is known to be yoked to the axial length). No such coefficients were seen in 19 families in which one of the parents had axial length outside the emmetropic range (nine families with long axes and 10 with short axes).
The pattern of polygenic inheritance for emmetropia (completely correlated optical components) and errors of refraction up to 4·0 D (inadequately correlated components: correlation ametropia) follows that seen in stature and other measurable characters. In contrast the high refractive errors with their abnormal axial lengths (component ametropia) are—like the extremes in stature—pathological anomalies with monofactorial inheritance.
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Editorial note. This article is published as part of a discussion. Particular issues of the article are disputable. First
of all, this concerns the so-called “folder” method of introduction of international standards for medical devices to domestic
medical practice (i.e., by direct translation of the standards and their publication as standardizing documents). Nevertheless,
at least one of the problems, the problem of coordination between domestic state standards for medical devices and international
recommendations of ISO and IEC, is undoubtedly of topical importance. Advancement of new health service legislation which
is to be approved by law-makers will definitely introduce corrections into the present situation. The Editorial Board of Meditsinskaya
Tekhnika believes this article will lessen these problems and to be welcomed by readers. 相似文献