Crohn disease has a distinguishing pattern in the gastrointestinal (gi) tract. the surface has granulomatous lesions surrounded by normal-appearing mucosal tissue. a complication of the pattern includes:

A complication of the pattern includes fistulae development and  abscesses.

Explanation:

A complication of the pattern in Crohn disease can cause the formation of fistulae in different parts of the body such as between the vowel and vagina or between the vowel and skin. It also can cause abscesses in the abdomen area or around the perianal area.

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