Lab Med Online.  2019 Jul;9(3):115-125. 10.3343/lmo.2019.9.3.115.

Recommendation for the Peripheral Blood Cell Morphology Report

  • 1Department of Laboratory Medicine, Korea University College of Medicine, Seoul, Korea.
  • 2Department of Laboratory Medicine, Chosun University College of Medicine, Gwangju, Korea.
  • 3Department of Laboratory Medicine, Chungnam Natonal University College of Medicine, Daejeon, Korea.
  • 4Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea.
  • 5Department of Laboratory Medicine, Ewha Womens University College of Medicine, Seoul, Korea.
  • 6Department of Laboratory Medicine, National Cancer Center, Seoul, Korea.
  • 7Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, Korea.


There is considerable heterogeneity in the peripheral blood smear reports across different diagnostic laboratories, despite following the guidelines published by the International Council for Standardization in Haematology (ICSH). As standardization of reports can facilitate communication and consequently the diagnostic efficiency in both laboratories and clinics, the standardization committee of the Korean Society for Laboratory Hematology aimed to establish a detailed guideline for the standardization of peripheral blood smear reports. Based on the ICSH guidelines, additional issues on describing and grading the peripheral blood smear findings were discussed. In this report, the proposed guideline is briefly described.


Blood cell morphology; Grading system; Standardization
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