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The papillae were covered by a single layer of low cuboidal cells.
2
We present 13 cases of unusual and unclassified spindle and cuboidal renal cell carcinomas.
3
Small cuboidal cells formed sparse tubular structures lined by a row of single cells.
4
Blue polyp cuboidal structures, rigidly symmetrical, arrayed in concentric rings.
5
The second cell type was a small cuboidal cell with clear to light eosinophilic cytoplasm.
6
This study confirms that spindle and cuboidal renal cell carcinoma has a low malignant potential.
7
They were lined by a continuous layer of cuboidal cells with very weak proliferative activity.
8
These nodules frequently contained tubular structures lined by cuboidal, columnar or, less commonly, flattened epithelial cells.
9
We hypothesize that the polygonal cells are immature compared with cuboidal cells and have higher proliferative activity.
10
Cell elongation changes cuboidal cells into columnar cells, and apical constriction then causes them to adopt apically narrow, wedge-like shapes.
11
Specially, the inner lining cells of some glandular structures were uniform cuboidal and hobnail-like, similar to the alveolar epithelial cells.
12
They were initially in a fibroblastic-like spindle shape and became cuboidal with the formation of nodules that were later confluent.
13
Conclusions: We present 11 cases of spindle and cuboidal renal cell carcinoma, which is believed to be a distinctive morphological entity.
14
They were composed of true papillae lined by a single layer of predominantly cuboidal cells with oncocytic cytoplasm; hobnailing was typically prominent.
15
Histologically, glandular epithelium has undergone shrinkage with transformation of acinar cells into low cuboidal type with less prominent secretory granules and blebs.
16
In addition to all previous published cases of spindle and cuboidal renal cell carcinoma we observed an association of nephrolithiasis in our cases.