Skin A 60 years old man presented with itchy tense blisters on normal looking skin and urticarial rash, investigation done for the diagnosis: A Direct immunofluorescence B Indirect immunofluorescence C Histopathology D Cytopathology 💡 Explanation A 60 years old man presented with itchy tense blisters on normal looking skin and urticarial rash, investigation done for the diagnosis: ✓ Correct Answer: A. Direct immunofluorescence