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Most cancers showed weak to moderate cytoplasmic and occasional nuclear positivity. Distinct membranous positivity was seen in colorectal, ovarian, pancreatic and gastric cancers. Several cases of lymphomas, renal, prostate, cervical and liver cancers negative.
Most tumor cells displayed weak to moderate cytoplasmic and/or nuclear immunoreactivity. Additional membranous staining was observed in a few colorectal and pancreatic cancers. Several prostate, lung and skin cancers were negative.