Pharmacogenetics is a study of how genetic variation of an individual affects the drug response. We report a case of recurrent pancytopenia resulting from maintenance chemotherapy in a patient with acute promyelocytic leukemia and two pharmacogenetic mutations, namely, methylene tetrahydrofolate reductase C677T homozygous mutation and thiopurine methyltransferase mutation.
Keywords: Acute promyelocytic leukemia; homozygous MTHFR C677T mutation; methylene tetrahydrofolate reductase; pancytopenia; thiopurine S-methyltransferase; thiopurine methyltransferase.
© The Author(s) 2015.