(1) 최근 국내 청소년기에 급증
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호발연령 15~25세
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Crohn’s disease (CD) > Ulcerative colitis (UC)
(2) CD
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colicky / diffuse or RLQ pain (± GI bleeding), wt loss (80%), growth failure (5%)
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Family Hx(+) : 25%
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perianal fistula / fissure / skin tag
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extra-intestinal sx (20%) : arthritis, Ankylosing spondylitis, erythema nodosum
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anemia, ESR ↑, CRP ↑, APCT
