1. Volume 133, Issue 4, Pages 1099-1105 (October 2007)
Histologic Inflammation Is a Risk Factor for Progression to Colorectal Neoplasia in Ulcerative Colitis: A Cohort Study 
Roopali Bansal Gupta, Noam Harpaz, Steven Itzkowitz, Sabera Hossain, Sierra Matula, Asher Kornbluth, Carol Bodian, Thomas Ullman 
Gastroenterology 
Volume 133, Issue 4, Pages (October 2007)
DOI: /j.gastro
Copyright © 2007 AGA Institute Terms and Conditions

2. Figure 1
Histologic activity index. (A) Inactive colitis with no cryptitis or crypt abscesses: HAI = 0. (B) Mildly active colitis with 1 crypt abscess (arrow): HAI = 1. (C) Moderately active colitis with cryptitis involving >50% of crypts (arrows): HAI = 2. (D) Severely active colitis with ulceration: HAI = 3.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2007 AGA Institute Terms and Conditions