Table 3.

Histopathology after neoadjuvant chemotherapy

Parameter	Median (range)	n = 30	%
ypT-category
ypT0		2	7
ypT1		2	7
ypT2		1	3
ypT3		21	70
ypT4a		3	10
ypT4b		1	3
Number of removed lymph nodes	43 (21–113)
ypN-category
ypN0		10	33
ypN1		5	17
ypN2		7	23
ypN3		8	27
ypN3 (AEG)		3	10
ypN3a (GC)		4	14
ypN3b (GC)		1	3
Tumor regression grading
Complete regression (Ia)		2	7
<  10% residual tumor (Ib)		9	30
≥ 10% and < 50% residual tumor (II)		6	20
≥ 50% residual tumor (III)		8	27
no regression (IV)		5	16
Modified tumor regression grading
Minor (grade II - IV, ≥ 10% residual tumor)		19	63
Major (grade Ia - Ib, <  10% residual tumor)		11	37