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Dynamic CT Evaluation of Tumor Vascularity in Renal Cell Carcinoma

Jin Hong Wang1,2, Peng Qiu Min2, Pei Jun Wang1, Wei Xia Cheng2, Xiu Hui Zhang2, Yu Wang1, Xiao Hu Zhao1 and Xin Qing Mao1

1 Department of Radiology, Tong Ji Hospital, Tong Ji University, Xin Cun Rd. 389, Shanghai 200065, China.
2 Department of Radiology, West China Hospital, Sichuan University, Shanghai, China.


Figure 1
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  		Fig. 1A —Homogeneous enhancement of all renal cell carcinoma lesions in right kidney in 52-year-old woman. Dynamic CT scan shows one region of interest is selected on parenchyma of tumor and aorta.

 

Figure 2
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  		Fig. 1B —Homogeneous enhancement of all renal cell carcinoma lesions in right kidney in 52-year-old woman. Graph shows time-density curves of tumor (solid line) and aorta (dotted line).

 

Figure 3
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  		Fig. 2A —Heterogeneous enhancement of renal cell carcinoma lesions in left kidney in 49-year-old man. Dynamic CT scan shows two regions of interest are selected on parenchyma of tumor and aorta.

 

Figure 4
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  		Fig. 2B —Heterogeneous enhancement of renal cell carcinoma lesions in left kidney in 49-year-old man. Graph shows time-density curves of tumors (purple and yellow lines) and aorta (blue line).

 

Figure 5
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  		Fig. 3 —Graph shows great variation in distribution of time-density curves in renal cell carcinoma. Some cases show steep and rapidly increasing curves, whereas some show flat and slowly rising curves.

 

Figure 6
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  		Fig. 4A —Capillaries in different patients with renal cell carcinoma. Photomicrographs show clustered (A) and sparse (B) capillaries. Immunoreactivity for CD34 is in brown. (CD34 stain, x200)

 

Figure 7
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  		Fig. 4B —Capillaries in different patients with renal cell carcinoma. Photomicrographs show clustered (A) and sparse (B) capillaries. Immunoreactivity for CD34 is in brown. (CD34 stain, x200)

 

Figure 8
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  		Fig. 5A —53-year-old man with renal cell carcinoma. Transverse contrast-enhanced CT scan shows circular enhancement and blood pool image of tumor parenchyma on left side.

 

Figure 9
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  		Fig. 5B —53-year-old man with renal cell carcinoma. Photomicrograph shows clustered tumor capillaries in brown. (CD34 stain, x200)

 

Figure 10
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  		Fig. 6A —48-year-old man with small renal cell carcinoma. Dynamic CT scan shows tumors appearing with relatively low density in renal parenchyma phase.

 

Figure 11
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  		Fig. 6B —48-year-old man with small renal cell carcinoma. Photomicrograph shows tumor capillaries with shape of sprouts appearing in pale brown. (CD34 stain, x200)

 

Figure 12
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  		Fig. 7 —Scatterplot shows density before and after tissue enhancement versus microvessel density.

 

Figure 13
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  		Fig. 8 —Scatterplot shows tissue-blood ratio versus microvessel density.

 

Figure 14
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  		Fig. 9 —Scatterplot shows area under time-density curve versus microvessel density.

 

Figure 15
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  		Fig. 10 —Scatterplot shows slope of time-density curve versus microvessel density.

 

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