Appearance of Granulocytes

Nucleus of the Band Neutrophil



  • The nucleus of a band neutrophil is sausage or band-shaped (U-shaped).
  • Sometimes it appears folded or twisted, thus making identification more difficult.
  • The nucleus stains a deep purplish-blue color, and the nuclear chromatin appears condensed, coarse, and clumped.

    • Test your clinical laboratory knowledge! Play the FREE LabCE.com Quiz Game.

    Normal Peripheral Blood Cells course details »

    Learn more about laboratory continuing education for ASCP, AMT, NCA, and state renewal and recertification requirements »

    Get information on OSHA laboratory safety courses for clinical and medical laboratories »