Summary
This research trial collects tissue samples from and studies the history of patients with myelodysplastic syndrome (MDS) or myeloproliferative neoplasms (MPN). Collecting and storing patients' bone marrow, blood, eyebrow hairs, buccal swab, skin, or other tissues to be studied in the laboratory in the future may help doctors learn more about MDS and blood disorders that may lead to MDS. Collecting information about patients and the treatments they receive may allow doctors to better understand how MDS changes over time and this knowledge may lead to better ways to prevent, detect, and treat MDS in the future.