Skip to main content search seer training modules print home glossary citation help home  »  site-specific modules  »  leukemia  »  abstracting, coding, & staging  »  morphology & grade  »  myelodysplastic syndromes cancer registration & surveillance modules site-specific modules leukemia introduction types of leukemia risk factors signs & symptoms survival rates review quiz anatomy composition of the blood blood cell lineage review quiz abstracting, coding, & staging icd-o site codes morphology & grade major categories acute lymphocytic leukemia acute myelogenous leukemia other lymphoid malignancies chronic myeloproliferative disorder myelodysplastic syndromes fab classification of refractory anemias extent of disease evaluation physical exam lab studies imaging tumor markers endoscopies operative report pathology other blood diseases staging abstracting keys treatment chemo & other therapies supportive care other blood diseases resources archived modules myelodysplastic syndromes 9989/3 myelodysplastic syndromes (mds) defintion disruption of production of blood cells—white, red, platelets; development of poor quality blood cells resulting in low levels of mature, functional cells; < 30% blasts in marrow icd-9 code 238. 7 unless indicated otherwise below synonyms pre-leukemia; preleukemic disorders smoldering leukemia; oligoblastic leukemia; subacute myeloid leukemia de novo myelodysplastic syndrome - develops with no known cause secondary myelodysplastic syndrome - develops following chemotherapy or radiation therapy for another disease; has poorer prognosis than de novo mds dysmyelopoietic syndrome; hemopoietic dysplasia « previous (chronic myeloproliferative disorder) next (fab classification of refractory anemias) » contact us | privacy policy | accessibility. Rosine kinase jak2 in human myeloproliferative disorders". buy canadian viagra online today Lancet 365 (9464): 1054–1061. brief history viagra Doi:10. viagra results video 1016/s0140-6736(05)71142-9. Pmid 15781101.   ^ james c, ugo v, le couedic jp, et al. (2005). Viagra over the counter uk 2010 "a unique clonal jak2 mutation leading to constitutive signalling causes polycythaemia vera". can i buy viagra over the counter in thailand Nature 434 (7037): 1144–1148. buy generic viagra without prescription Doi:10. brief history viagra 1038/nature03546. buy generic viagra on line Pmid 15793561.   ^ levine rl, wadleigh m, cools j, et al. (2005). viagra use multiple sclerosis "activating mutation in the tyrosine kinase jak2 in polycythemia vera, essential thrombocythemia, and myeloid metaplasia with myelofibrosis". Cancer cell 7 (4): 387–397. Doi:10. brief history viagra 1016/j. buy cheap viagra Ccr. discount generic viagra mg 2005. 03. 023. viagra blindness 2011 Pmid 15837627.   ^ kralovics r, passamonti f, buser as, et al. Cost of viagra 50mg (2005). "a gain-of-function mutation of jak2 in myeloproliferative disorders". buy viagra online cheap N engl j med 352 (17): 1779–1790. Doi:10. 1056/nejmoa051113. Pmid 15858187. buying generic viagra online   ^ campbell pj, scott lm, buck g, et al. (2005). therapy first viagra coupon "definition of subtypes of essential thrombocythaemia and relation to polycythaemia vera based on jak2 v617f mutation status: a prospective study". Viagra patent expiration date us Lancet 366 (9501): 1945–1953. generic viagra prices