Shown here is another lymphoblast. Again, note that the cytoplasm is very scanty. A blast with much cytoplasm is almost never a lymphoblast. However, myeloblasts and monoblasts also can have scanty cytoplasm. There are many times that other techniques, such as cytochemical staining or chromosomal studies, must be done to determine the cell line of the blasts in acute leukemia.
Course Section: 04. Immature Cells in the Granulocytic - Monocytic - and Lymphocytic Series
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