Role of histopathology in pharmacodiagnostic

Role of histopathology in pharmacodiagnostic

Discuss the role histopathology now has, or could have in the future, in the field of pharmacodiagnostics, targeted therapies/personalised medical treatment. Illustrate your answer with relevant examples. Give a brief discussion of any technical methods used or discussed (Note a full detailed technical description is not necessary just the principles, advantages, disadvantages, controversies etc.)