Sunday, April 23, 2017

Case of the Week 443

This week's case was donated by Dr. Tom Grys. The patient is an immunocompromised man with hemophagocytic lymphohistiocytosis (HLH) and fever. He reports travel throughout the United States and Italy. Bone marrow biopsy revealed the following:



Identification?





8 comments:

Kevin Barker said...

Leishmaniasis, from Trypanosoma!

Nate said...

Likely Leishmania infantum with the history and epidemiology.

Ulises Rojo said...

Leishmaniasis

Kathy Murray Leisure, MD said...

Loaded with amastigotes from visceral leishmaniasis. L infantum from Italy? Excellent photomicrographs.

Anonymous said...

A beautiful case of Leishmania infection. The amastigotes are typical of the genus.

Florida Fan

William Sears said...

Leishmaniasis amastigote

Anonymous said...

LEISH!

Florent Morio said...

Intracellular amastigotes of Leishmania spp.