Very small (dot-like) Blue or blue-gray granules distributed throughout the cytoplasm of RBCs
Composed of ribosomes
› Normal % blood-PB, marrow-BM, lymphoid tissue-LN:
PB: None
BM: None
LN: None
› May Resemble:
Pappenheimer bodies
Heinz bodies (seen with special stain only)
Howell-Jolly body
Hemoglobin H inclusion (seen with special stain only)
Malaria infection
Babesia infection
Giant platelets
Artifacts (e.g. Stain precipitate)
› Differential Diagnoses:
Lead poisoning Thalassemia Sickle cell anemia MDS
› Classic Immunophenotype:
N/A
› Cartoon Image:
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for direct comparison
› Misc:
Note: Basophilic stippling is ribosomal inclusions in RBCs, while Pappenheimer bodies are iron deposits, Heinz bodies are precipitated hemoglobin seen with special stain (He for Heinz and He for Hemoglobin), and Howell Jolly bodies are DNA remnants