Montreal Matrix • Crohn's Phenotyping
Age at Diagnosis (A)
Disease Location (L)
Clinical Behavior (B)
Perianal Disease Modifier (p)
Guidelines & Evidence
Verified
Last Review: 2026
Last Comprehensive Review: 2026
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Montreal Matrix • Crohn's Phenotyping
Montreal Phenotype
17 - 40 years
Most common age of onset.
Ileocolonic
Terminal ileum and any location between caecum and rectum.
Non-stricturing, Non-penetrating
Inflammatory pattern only.
Verified
Last Review: 2026
Last Comprehensive Review: 2026
