IHC MCQs- Based on CK7 /CK20

Welcome to your IHC MCQs- Based on CK7 /CK20

1. All of the following are CK 7 and CK 20 positive except?
2. Which of the following is CK7 negative and CK 20 positive?
3. All of the following are CK 7 positive and CK 20 negative except?