Here we described an autopsy case of intestinal Behcet's disease with sacroiliitis associated with myelodysplastic syndrome (RAEB-t, 8+). Over twenty cases of Behcet's disease associated with myelodysplastic syndrome have been reported in preliterature so far. The majority of them are incomplete type of Behcet's disease having intestinal ulceration. Of those, trisomy 8 is the most common chromosomal abnormality. We reviewed similar cases reported and investigated the association of intestinal Behcet's disease with trisomy 8. The association of sacroiliitis with Behcet's disease is also studied.