Contents

Search

Taenia solium (pork tapeworm, cysticercus)

The cysticercus (bladder worm) is the adult form of Taenia solium (C cellulosae). Pathology: 1) infection with the adult worm leads to infection limited to the gastrointestinal tract 2) infection with the eggs from the adult form leads to disseminated disease (cysticercosis) 3) appears on biopsy as a translucent fluid-filled oval sac containing a single inverted scolex measuring 5 mm or more in diameter * image [5] Clinical manifestations: -> symptoms are often produced when the organism dies, which evokes an inflammatory response Laboratory: 1) biopsy a) the scolex of Taenia solium has 4 suckers & a rostellum with 2 rows of hooks - image [5] b) gravid proglottids have 7-13 lateral uterine branches 2) Taenia solium serology - Taenia solium antibody in CSF - Taenia solium antibody in serum 3) Taenia solium antigen in stool 4) Taenia solium larva DNA in CSF 5) see ARUP consult [3]

Related

cysticercosis Taenia solium adult Ab in Serum Taenia solium antibody in CSF Taenia solium antibody in Serum Taenia solium antibody; cysticercosis antibody Taenia solium antigen in stool Taenia solium IgG in Serum Taenia solium IgG in Serum by immunofluorescence Taenia solium larva Ab in CSF Taenia solium larva Ab in Serum Taenia solium larva antigen in serum Taenia solium larva DNA in blood Taenia solium larva DNA in CSF Taenia solium larva DNA in tissue Taenia solium larva IgA in CSF Taenia solium larva IgA in Serum Taenia solium larva IgG in CSF Taenia solium larva IgG in Serum Taenia solium larva IgM in CSF Taenia solium larva IgM in Serum

General

Taenia

Properties

KINGDOM: animal PHYLUM: helminth

References

  1. Clinical Diagnosis & Management by Laboratory Methods, 19th edition, J.B. Henry (ed), W.B. Saunders Co., Philadelphia, PA. 1996, pg 1287
  2. Harrison's Principles of Internal Medicine, 14th ed. Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 1224-25
  3. ARUP Consult: Taenia Solium - Cysticercosis The Physician's Guide to Laboratory Test Selection & Interpretation https://arupconsult.com/content/cysticercosis
  4. Grimm L What's Eating You: 12 Common Intestinal Parasites. Medscape. November 25, 2019 https://reference.medscape.com/slideshow/intestinal-parasites-6010996
  5. Lu VM, Saad AG, Shah AH Images in Neurology Histologic Anatomy of Neurocysticercosis. JAMA Neurol. Published online October 23, 2023. PMID: 37870830 https://jamanetwork.com/journals/jamaneurology/fullarticle/2810536