Association of myelodysplastic syndrome and relapsing polychondritis: further evidence.

We report five patients with both a myelodysplastic syndrome (MDS) and relapsing polychondritis (RP), that represented 0.6% of all MDS and 28% of all RP diagnosed over a period of 14 years. Ten other cases had previously been reported (four in detail), supporting a non-fortuitous association between the two disorders, already suggested for MDS and some other immunological disorders.