Myelodysplastic Syndrome With Trisomy 8 and Behçet Disease-Like Intestinal and Upper Gastrointestinal Involvement.

We found an extremely rare case of upper gastrointestinal involvement in trisomy 8-positive myelodysplastic syndrome. This is the first reported case of trisomy 8-positive myelodysplastic syndrome with both upper and lower gastrointestinal involvement, which was successfully treated with bone marrow transplantation.