H. H. Rashidi, MD
J. C. Nguyen, MD
HematologyOutlines.com

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Blood/Blood Cells and Cellular Components ›› Red Blood Cells ›› Abnormal

Infectious-Microfilaria

Infectious-Microfilaria
Infectious-Microfilaria
Infectious-Microfilaria
Additional Image 1: Infectious-Microfilaria
Additional image 1: Infectious-Microfilaria

›Microscopic Features:

  • Very large parasites (as compared to other parasites such as malaria, babesia, or even Trypanosoma)
  • Worm-like appearance
  • Extracellular parasites

›Normal % blood-PB, marrow-BM, lymphoid tissue-LN:

  • PB: None
  • BM: None
  • LN: None

›May Resemble:

›Differential Diagnoses:

Other parasites
Artifact (cloth, etc.)

›Classic Immunophenotype:

  • N/A

›Cartoon Image:

Infectious-Microfilaria cartoon

›Misc:

Must scan the smear on very low power to make sure it's not missed
Extracellular parasite