Unknown Which of the following is not associated with pseudomembranous colitis? A Toxin A is responsible for clinical manifestation B Toxin B is responsible for clinical manifestation C Gross blood in stools is common D Summit lesion is early histopathological finding 💡 Explanation Which of the following is not associated with pseudomembranous colitis? ✓ Correct Answer: C. Gross blood in stools is common