`Microscopic colitis': classification and terminology

Microscopic colitis 1 –4 represents an area of communication difficulty, especially between gastroenterologists and histopathologists. The authors of this commentary welcome the paper of Libbrecht et al. 5 in this issue of Histopathology which describes a form of microscopic colitis. This exemplifies the fact that the original classification of lymphocytic or collagenous colitis is a little limited for routine diagnosis and understanding of the aetiology of microscopic colitis. The unhelpful term `non‐specific colitis' is best avoided, so the classification of microscopic colitis needs to evolve.