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The results of the bone marrow
smears showed
hypercellularity
with sheets of small
blasts.
These blasts showed
a large, regular nucleus and little cytoplasm. There were no
visible nucleoli.
Instructors
notes: Although
blasts are commonly seen in a bone marrow smear, all of the
different cell lines should be represented. The
preponderance of one cell type suggests a leukemia. The
yellow arrow points to a lymphoblast with some cytoplasm present;
the red arrow points to a lymphoblast with no visible cytoplasm.
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