obsolete_essential thrombocythemia https://rarediseases.info.nih.gov/diseases/6594/essential-thrombocythemia true MESH:D013920 MedDRA:10015493 ICD10:D47.3 Orphanet:3318 COHD:438383 primary thrombocythemia ONCOTREE:ET hemorrhagic thrombocythemia ICD9:238.71 OMIM:614521 SCTID:109994006 A chronic myeloproliferative neoplasm that involves primarily the megakaryocytic lineage. It is characterized by sustained thrombocytosis in the blood, increased numbers of large, mature megakaryocytes in the bone marrow, and episodes of thrombosis and/or hemorrhage. (WHO, 2008) UMLS:C0040028 OMIM:601977 3.88.0 OMIM:187950 NCIT:C3407 EFO:0000479 primary thrombocytosis essential thrombocytemia idiopathic thrombocythemia essential thrombocythemia essential thrombocythaemia http://purl.obolibrary.org/obo/MONDO_0005029 GARD:0006594 ICDO:9962/3 essential thrombocytosis DOID:2224 ET Replaced by Mondo term MONDO_0005029, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0005029