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1·Objective To study the cellular components and ultrastructures of pig kidney collecting duct.

目的研究猪肾近端小管的超微结构。

2·Collecting duct carcinoma of the kidney is rare and its biological behavior is not well known.

肾集合管癌少见，其生物学行为尚不十分清楚。

3·Purpose To study the clinicopathologic characteristics of renal collecting duct carcinoma (CDC).

目的研究肾集合管癌的临床病理特征。

4·Objective To study the clinicopathologic characteristics of renal collecting duct carcinoma(CDC).

目的研究肾集合管癌的临床病理特征。

5·The positive signal of ISH was mainly distributed in the epithelium of renal tubule and collecting duct.

杂交阳性信号主要分布在肾小管和集合管上皮细胞。

6·Results The results provide the facts that collecting duct consists of principal cells and intercalated cells.

结果集合小管是由主细胞和闰细胞组成。

7·The results showed that apoptotic cells mainly occurred in the renal cells of distal convoluted tubule and collecting duct.

结果表明，凋亡细胞多见于远曲小管和集合管的上皮细胞。

8·Results: the results show that AQP2 is restricted in the renal collecting duct. There is no expression in the extrarenal tissues.

结果：表明AQP2仅在大鼠集合管表达，肾脏其它部位无表达，其它组织器官亦无表达。

9·The renal tubules were composed of the neck, the first and the second proximal, intermediate and distal segments and the collecting duct.

肾小管由颈段、第一近曲小管、第二近曲小管、间段、远曲小管及搜集管组成。

10·Methods the ct features in 3 cases of collecting duct carcinoma of the kidney confirmed by pathology were reported, and the literature was reviewed.

方法报告3例经病理证实的肾脏集合管癌的螺旋CT所见，并作文献复习。