SPI1 and aneurysmal bone cyst: As the assessment of both the miR-155/INPP5D and miR-155/PU.1 axes may potentially be useful for differential lymphoma diagnosis between ABC-DBLCL and GC-DBLCL, this concurs with the concept that different networks are involved in the development of different lymphoma subtypes, thus reflecting their origin and particular stage of differentiation.