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1418

PHIL Image 1418

ID#:1418
Description:Under a very low magnification of only 8X, this photomicrograph revealed some of the ultrastructural morphology exhibited by three Taenia solium proglottids.

Proglottids of Taenia spp.:

Gravid proglottids are longer than wide, and the two species, T. solium and T. saginata, differ in the number of primary lateral uterine branches: T. solium contains 7-13 lateral branches, and T. saginata 12-30 lateral branches. Adults of Taenia spp. can reach a length of 2-8 meters, but the hooked scolex, located at the head region, is only 1-2 millimeters in diameter. Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata or Taenia solium. Humans are the only definitive hosts for these two tapeworm species.

Clinical Features:

Taenia saginata taeniasis produces only mild abdominal symptoms. The most striking feature consists of the passage (active and passive) of proglottids. Occasionally, appendicitis or cholangitis can result from migrating proglottids. T. solium taeniasis is less frequently symptomatic than T. saginata taeniasis. The main symptom is often the passage (passive) of proglottids. The most important feature of T. solium taeniasis is the risk of development of cysticercosis.

High Resolution:Right click here and select "Save Target As..." for hi-resolution image (6.52 MB)
Content Providers(s):CDC/ Dr. Mae Melvin
Creation Date:1974
Photo Credit:
Links:
  • CDC – Div. of Parasitic Diseases (DPDx); Echinococcosis
    Categories:
    CDC Organization

    MeSH
    tree picture Diseases
    tree picture tree picture Parasitic Diseases
    tree picturetree picture tree picture Helminthiasis
    tree picturetree picturetree picture tree picture Cestode Infections
    tree picturetree picturetree picturetree picture tree picture Taeniasis
    tree picturetree picturetree picturetree picturetree picture tree picture Cysticercosis
    tree picture Organisms
    tree picture tree picture Animals
    tree picturetree picture tree picture Invertebrates
    tree picturetree picturetree picture tree picture Helminths
    tree picturetree picturetree picturetree picture tree picture Platyhelminths
    tree picturetree picturetree picturetree picturetree picture tree picture Cestoda
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Taenia
    tree picturetree picturetree picturetree picturetree picturetree picturetree picture tree picture Taenia solium
    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.
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