Clin Exp Rheumatol
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A number of patients with Behçet's disease (BD) associated with myelodysplastic syndrome (MDS) with or without trisomy 8 have been reported. A high frequency of gastrointestinal (GI) involvement was reported in such patients. The aim of this systematic literature review was to delineate whether GI involvement is an inherent feature of BD associated with MDS, whether these patients do actually have BD rather than GI symptoms related to MDS, and whether the presence of trisomy 8 plays a role in the disease expression of BD associated with MDS. ⋯ GI involvement seems to be an inherent feature of BD associated with MDS regardless of geographic differences. Despite the increased frequency of GI involvement in these patients, MDS does not seem to modify the clinical expression of gastrointestinal involvement. Presence of trisomy 8 seems to modify the disease expression with an increased frequency of fever.