CD44 and neoplasm: For CD44 staining, 26 (92.9%; 4 weak, 8 moderate, 14 strong) of 28 MIBC tissues; 18 (85.7%; 7 weak, 9 moderate, 2 strong) of 21 NMIBC specimens; 11 (61.1%; 9 weak, 2 moderate) of 18 benign bladder tissue were positive.