Table 5.

Morphological characteristics of RAT and ccpRCC

#	Papillary Architecture	Branched Ducts	Secretory Cells	% Cystic
RAT
1	1f	yes	no	15
2	0	no	no	0
3	2f	yes	no	65
4	1f	yes	no	5
5	2f	yes	no	0
6	1f	yes	no	55
7	2f	yes	no	15
ccpRCC
1	1	yes	yes	85
2	2	yes	no	10
3	3	yes	yes	10
4	3	yes	no	10
5	2	yes	no	15
6	3	yes	yes	55
7	1	yes	yes	0
8	3	yes	no	0
9	3	yes	no	0
10	2	yes	no	5
11	3	yes	no	0
12	3	yes	yes	40
13	1	yes	yes	15
14	1	yes	no	5
15	2	yes	no	20
16	2	yes	no	10
17	1	yes	yes	15
18	3	yes	yes	45
19	2	yes	no	30
20	2	yes	yes	20
21	2	yes	no	5
22	1	yes	no	10
23	3	yes	yes	55
24	1	yes	yes	10
25	3	yes	no	35
26	2	yes	yes	5
27	3	yes	yes	30

f = focal

Scored as previously described (7)