Auer rods

Which conditions are associated with Auer rods ?

Also called – Auer bodies

These are large, crystalline cytoplasmic inclusion bodies sometimes observed in myeloid blast cells during –

acute myeloid leukemia,

Also seen in –

  • acute promyelocytic leukemia,
  • high-grade myelodysplastic syndromes
  • myeloproliferative disorders.

What is the Shape of Auer Rods ?

Auer rods are azurophilic and can resemble

  • needles,
  • commas,
  • diamonds,
  • rectangles,
  • corkscrews, or
  • granules

Myeloblast with Auer rod smear 2010-01-27
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