Monday, June 14, 2010

Case of the Week 119

The following were seen on a Giemsa-stained thick blood film made from EDTA whole blood. Identification?







Which forms are present?

3 comments:

Anonymous said...

Leishmaniasis

Alasdair said...

T. cruzi.

The bottom panel is classic with the kinetoplast located at the head of the cell.

The others are difficult - is the EDTA causing the trypanomastigotes to curl up? They don't look like pseudocysts.

Anonymous said...

The last is a classic T. cruzi; I would've guessed Leishmania for the others too, though you wouldn't see extracellular amastigotes in the blood very often if ever. Even the stumpy forms of T. brucei are usually more elongated.