th emia ▁ver a ▁or ▁post - ess ential ▁th rom b oc yth emia ) ▁my el of ib ros is ▁( M F ). ▁ ▁History ▁My el of ib ros is ▁was ▁first ▁described ▁in ▁ 1 8 7 9 ▁by ▁Gustav ▁He uck . ▁ ▁Old er ▁terms ▁include ▁" my el of ib ros is ▁with ▁my el oid ▁met ap las ia " ▁and ▁" agn ogen ic ▁my el oid ▁met ap las ia ". ▁The ▁World ▁Health ▁Organ ization ▁util ized ▁the ▁name ▁" chron ic ▁id iop ath ic ▁my el of ib ros is ", ▁while ▁the ▁International ▁Working ▁Group ▁on ▁My el of ib ros is ▁Research ▁and ▁Tre at ment ▁calls ▁the ▁disease ▁" primary ▁my el of ib ros is ". ▁ ▁In ▁ 2 0 0 8 ▁W HO ▁has ▁adopted ▁the ▁name ▁of ▁" primary ▁my el of ib ros is ." ▁E pon ym s ▁for ▁the ▁disease ▁are ▁He uck - Ass mann ▁disease ▁or ▁Ass mann ' s ▁D ise ase , ▁for ▁Herbert ▁Ass mann , ▁who ▁published ▁a ▁description ▁under ▁the ▁term ▁" ost e os cl eros is " ▁in ▁ 1 9 0 7 . ▁ ▁It ▁was ▁character ised ▁as ▁a ▁my el op rol ifer ative ▁condition ▁in ▁ 1 9 5 1 ▁by ▁William ▁D ames he k . ▁The ▁Le uk emia ▁and ▁L ym ph oma ▁Society ▁describes ▁my el of ib ros is ▁as ▁a