Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Microscopic Colitis: Collagenous Colitis and Lymphocytic Colitis ?
    ### Response:
    A pathologista doctor who specializes in examining tissues to diagnose diseasesdiagnoses microscopic colitis based on the findings of multiple biopsies taken throughout the colon. Biopsy is a procedure that involves taking small pieces of tissue for examination with a microscope.
    