A patient with hyperthyroidism may develop neutropenia due to a number of factors.
Patient selection: hyperthyroidism AND low absolute neutrophil count
Differential diagnosis to consider:
(1) autoimmune neutropenia associated with autoimmune thyroiditis
(2) drug-induced neutropenia (methimazole, other)
(3) myelodysplasia
(4) infectious mononucleosis or other infection
Neutropenia is seen in about 10% of patients with Graves' disease. Treatment of the Graves' disease corrects the neutropenia.
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Specialty: Hematology Oncology
