Toxic megacolon in all EXCEPT.. Ulcerative colitis. Salmonellasis. Crohn's disease. Antibiotic associated colitis

Toxic megacolon in all EXCEPT:
A- Ulcerative colitis
B- Lymphogranuloma venereum.  False (Chlamydia trachomatis - proctitis - fibrosis & fistulation of rectum).
C- Salmonellasis.
D- Antibiotic associated colitis
E- Crohn's disease.