Granulocytic fragments have been described in the peripheral blood of patie
nts with sepsis and the systemic inflammatory response syndrome (SIRS). Alt
hough initially proposed as a morphologic clue for distinguishing the leuko
erythroblastosis of sepsis from that of myelophthisis or marrow replacement
by tumor, granulocyte-derived fragments may be part of a spectrum of cellu
lar fragmentation associated with pathological inflammation and thrombosis,
and thus play an important role in the pathophysiology of sepsis and SIRS.
Pathologists, hematologists, and medical technologists should be aware of
their existence, the morphologic features that distinguish them from macrot
hombocytes and schistocytes, and their potential significance.