Colitis of undetermined etiology (CUTE)

Question 1

What is it?

Answer 1

IBD causing colitis where a definitive diagnosis of ulcerative colitis or Crohn’s disease cannot be given
Clinically useful to distinguish if CD or UC for management

Question 2

Testing for CUTE?

Answer 2

Serological testing for anti-neutrophil cytoplasmic antibodies (ANCA)- UC
Anti-saccharomyces ceravisiae antibodies (ASCA)= CD