Phase II study of preoperative radiation plus concurrent daily tegafur-uracil (UFT) with leucovorin for locally advanced rectal cancer

Table 4 Pre-treatment EUS T and N staging and post-treatment pathologic T and N staging in resected patients

Pre-treatment	Post-treatment pathologic stage				Downstaging, n/N (%)
EUS T stage	pT0	pT1	pT2	pT3
T2*	1	0	2	0	1/3 (33)
T3	6	2	13	28	21/49 (43)
Total	7	2	15	28	22/52 (42)
EUS N stage	pN0	pN1
N0	19	0			0/19
N1	22	10			22/32 (69)
N2	0	1			1/1 (100)
Total	41	11			23/52 (44)

EUS = endorectal ultrasonography
*Three patients had an estimated T2 tumor using EUS but had a T3 tumor identified clinically

ISSN: 1471-2407