CRP and inflammatory bowel disease: Fecal and serological diagnostic tests, e.g. for calprotectin, lactoferrin or CRP (C-reactive protein) as well as serum antibodies like pANCAs (perinuclear antineutrophil cytoplasmic antibody) and ASCAs (anti-S.cerevisiae antibody), supplement invasive endoscopic/colonoscopic methods to verify IBD-diagnosis, to differentiate between the major subtypes or to evaluate disease progression [3,4].