Fig. 4From: Late recurrent gastric carcinoma 12 years after surgery with attenuation of CD44 variant 9 expressiona Histopathologically, proliferating adenocarcinoma cells demonstrated conjoined tubular structures. On immunohistochemical analysis, the tumor cells were positive for CK7 (b) and negative for CK20 (c) and showed a Ki-67 labeling index of less than 3% (d)Back to article page