Granulocyte colony-stimulating factors may be responsible for a set of laboratory findings in the peripheral blood film that may be confused with those associated with important diseases like myeloproliferative neoplasms, infection, or megaloblastic anaemia. We present a case report of a 29-year-old woman where these laboratory findings are described.
Keywords: G-CSFs; Macropolycytes; Neoplasms.
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