Figure 1.
![Representative pathologic specimens of BL. (A) Hematoxylin and eosin slide demonstrating abundant large and irregularly shaped macrophages interspersed among lymphocytes to give the classic “starry sky” appearance. (B) BL cells with prominent cytoplasmic vacuoles. Reproduced from the ASH Image Bank (images 00061346 [A] and 00001117 [B]) with permission.](https://ash.silverchair-cdn.com/ash/content_public/journal/blood/137/6/10.1182_blood.2019004099/3/bloodbld2019004099cf1.png?Expires=1735808873&Signature=CMMkilbTSD0mq8LTffgADaBsq1~DiTx65ehCgwSMPENRmd8CVVs31hlhGXNSVTMbmGI2xl6~zkCcx3ri83gYozim3AMJgAPjX5EBCMidjYHacpXq2eqYRTRjW86sVcUksdy65k~v0qRV6RuaY4amxyB6-dBJFx3oFgsiobRvLHeXUeZeX1-AAhTzWODZMLI6Eio2a5pQZayuODn5LK0Q6PopQrSc~NYMJR1mwmBnkEbILC8T0Gtu498K9mZt39omFpj-aAdUkgFSkC~-6FDhJlL7hJdDxk7hztyXW-zJxL96Op-eDHog~ItVpgKtgnXE1fv1XwAv9~jCZY2vo1NsQg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Representative pathologic specimens of BL. (A) Hematoxylin and eosin slide demonstrating abundant large and irregularly shaped macrophages interspersed among lymphocytes to give the classic “starry sky” appearance. (B) BL cells with prominent cytoplasmic vacuoles. Reproduced from the ASH Image Bank (images 00061346 [A] and 00001117 [B]) with permission.