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88.

The characteristic features of Crohn disease include: 1) presence of serum antibodies against Saccharomyces cerevisiae (ASCA); 2) toxic megacolon; 3) presence of fistulas; 4) presence of pseudopolyps; 5) perianal lesions. The correct answer is:

A. 1, 3, 4
B. 1, 3, 5
C. 1, 4, 5
D. 2, 3, 5
E. 2, 4, 5

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