Nonsegmented, elongated helminthic parasites (nematodes). The adult stage infects the human intestinal tract. Larval stages can exist elsewhere in the body. Eggs and/or larvae of rou...
E. vermicularis
Most infections are asymptomatic; nocturnal perianal itching is the most common symptom.
Abdominal pain possible with high parasite burden
T. trichiura
Symptomatic if heav...
E. vermicularis (pinworm): pyrantel pamoate 11 mg/kg PO once (max 1 g); with a repeat dose 2 weeks later or albendazole 400 mg PO or mebendazole 100 mg PO once, repeat do...
Speich B, Ame SM, Ali SM, et al. Oxantel pamoate-albendazole for Trichuris trichiura infection. N Engl J Med. 2014;370(7):610–620.
Ziegelbauer K, Speich B, Mäusezahl D, et al. ...
B77.0 Ascariasis with intestinal complications
B77.9 Ascariasis, unspecified
187171000 Ascariasis with intestinal complications (disorder)
2435008 Ascariasis (disord...
Ascariasis is the most common worldwide nematode infection.
E. vermicularis (pinworm) is the most common U.S. nematode infection.
Eosinophilia is best indicator of infection with N. amer...
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