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

Infectious-Microfilaria*


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› 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:

• Trypanosoma [Compare]

› Differential Diagnoses:

Other parasites Artifact (cloth, etc.)

› Classic Immunophenotype:

• N/A

› Cartoon Image:


› Misc:

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