Crohn's Montreal Classification
Montreal L-category
 - L1 - Terminal ileum
 - L2 - Colon
 - L3 - Ileocolon
 - L4 - Upper GI tract
 - L4+L3 - Upper GI tract and distal disease 
Montreal B-category
 - B1 - Without stricture formation, non-penetrating
 - B2 - Stricturing
 - B3 - Penetrating
 - B3p - Perianally penetrating

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Dr. Gerald Diaz @GeraldMD · 3 years ago
Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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