Fig. 1.

Colonoscopy appearance of patients with UC and CDI. (A) Pseudo-membrane was found in this patient with UC and CDI. (B) Severe colonoscopic appearance of a patient with UC and combined with CDI and CMV

Colonoscopy appearance of patients with UC and CDI. (A) Pseudo-membrane was found in this patient with UC and CDI. (B) Severe colonoscopic appearance of a patient with UC and combined with CDI and CMV