Surgery In the case of carcinoma breast with Her -2 neu immunohistochemistry staining, which of the following score needs fuher FISH study? B 1+ C 2+ D 3+ 💡 Explanation In the case of carcinoma breast with Her -2 neu immunohistochemistry staining, which of the following score needs fuher FISH study? ✓ Correct Answer: C. 2+