Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content


This is an electron microscopic (EM) image of Leishmania braziliensis promastigotes grown in cell culture. Note the dense kinetoplasts in the cytoplasm of these flagellated forms.
Additional Information:
“Promastigotes are not found in human tissue; this stage occurs in the mid-gut of the sand fly (genera Phlebotomus and Lutzomyia) intermediate hosts. Promastigotes are elongate, slender and measure about 10-12 µm in length. They have a large central nucleus and a kinetoplast located near the anterior end. A flagellum arises at the anterior end, that may be longer than the rest of the promastigote.”

See the links below for more on the subject of leishmaniasis.

High Resolution: Click here for hi-resolution image (5.81 MB)
Content Providers(s):CDC/ Cynthia Goldsmith and Luciana Flannery
Creation Date:2017
Photo Credit:Cynthia Goldsmith and Luciana Flannery
Links:CDC – Div. of Parasitic Diseases (DPDx); Leishmaniasis
CDC - Global Health - Division of Parasitic Diseases and Malaria; Parasites - Leishmaniasis
CDC Organization
Skip Navigation Links.

Skip Navigation Links.
Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.