Table 4: Correlation between primary or secondary perianal Paget’s diseases and immunophenotypes.

Primary PPD ()Secondary PPD () valuea

CK7
 Positive7 (70.0%)6 (46.2%)0.402
 Negative3 (30.0%)7 (53.8%)
CK20
 Positive6 (60.0%)10 (76.9%)0.650
 Negative4 (40.0%)3 (23.1%)
CDX2
 Positive6 (60.0%)12 (92.3%)0.127
 Negative4 (40.0%)1 (7.7%)
GCDFP-15
 Positive3 (30.0%)0 (0.0%)0.068
 Negative7 (70.0%)13 (100.0%)

CRC: colorectal cancer. a value was analyzed using the two-sided Fisher exact test.