HematologyOutlines - Atlas
Primary Hematopoietic and Lymphoid Tissue ›› Bone Marrow ›› Abnormal

Leishmania in Histiocytes*


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› Microscopic Features:
  • Small round/oval parasitic forms with kinetoplasts are noted here within the cytoplasm of this histiocyte
› Normal % blood-PB, marrow-BM, lymphoid tissue-LN:
  • PB: None
  • BM: None
  • LN: None
› May Resemble:
  • Histoplasma in histiocytes
  • Cellular debris in Histiocytes
  • Bacteria in Histiocytes
› Differential Diagnoses:

Leishmaniasis
Histoplasmosis
Cellular debris within histiocytes
Bacterial infection

› Classic Immunophenotype:
  • N/A
› Cartoon Image:



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RBC
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› Misc:
  • Histoplasma fungal forms lack kinetoplasts (small dark blue rod shaped structures within the organism) which are present in leishmania