The value of enhanced multiparameteric MRI diagnostic model for preoperatively predicting surgical methods of inferior vena cava in patients with renal tumors and inferior vena cava tumor thrombus

Table 3 Postoperative pathological types and distribution of renal tumors

Postoperative pathologic types	primary MRI diagnosis of renal tumor		IVC wall intraoperative observations		Total
Postoperative pathologic types	groups A	groups B	Non-invaded	Invaded	Total
ccRCC I-II^a	41	7	30	18	48
ccRCC III-IV^a	44	17	21	40	61
PRCC	1	24	7	18	25
UTUC	0	6	0	6	6
sarcoma	0	8	2	6	8
others	3	14	6	11	17
total	89	76	66	99	165

^aWhen one renal tumor contained two or more WHO/ISUP pathological grades, the highest grade was as the criterion

ISSN: 1471-2342