pacificus tapeworm represents one of the few exceptions because its proglottids
possess papilla-like protuberances separated by semicircular pits between the genital atrium and the anterior margins of segments (1); these protuberances are absent in other species that cause diphyllobothriosis.
We agree with Dyer and Klimstra (1982) that the name Mesocestoides variabilis should be used for these tapeworms from foxes especially those with rectangular terminal proglottids
But once a tapeworm matures, it begins releasing rather large, semi-self-propelled egg-filled sacks called proglottids
Microscopically, visualization of proglottids
, eggs, or cysts as well as adult fluke organisms provides the specific evidence needed to identify these infectious parasites.
22,23) The notes later mention the presence of tapeworm proglottids
in the same urine sample.
The stool examination revealed small, white, seed-like structures which were identified as proglottids
, measuring 7mm by 3mm and tapered at both ends.
contained between 100 and 120 testes.
The eggs or gravid proglottids
(segment of the tapeworm containing fertilized eggs) are excreted in the feces and consumed by the pig (intermediate host) to develop into larvae.
Patients may also report the passage of proglottids
in the stool.
1) People can be infected by eating uncooked or poorly cooked cysticercosis pork or by digesting eggs created by the adult tapeworm directly or regurgitating gravid proglottids
from the human gut to the stomach.
solium is a hermaphrodite, and the gravid proglottids
are released into the intestinal lumen.
5-3 m), with about 1,000 proglottids
(segments) that mature, become gravid, detach from the tapeworm, and migrate to the anus or are passed in the stool.