Clinical Presentation of Hymenolepis spp. in Humans
Three adult Hymenolepis nana tapeworms, each 15-44mm.
(Image courtesy of Georgia Division of Public Health and the Unites States CDC Parasites Division)
occur only with heavy infections and are most apparent in children.
Case Report: from United States
Hamerick, HJ, Bowdre, JH, and Church, S. (1990) Rat tapeworm(Hymenolepis diminuta) infection in a child. Pediatric Infections Disease Journal 9: 216-219.
Case Report: from Spain, Human Infection with H. diminuta
A five year old girl, was brought to the hospital with an episode of apnea induced by crying, became cyanotic, lost consciousness, experienced stifness of limbs, drowsiness and hypotony, and restless nights. Most tell-tale symptoms were abdominal pain and anal pruritus. Eggs of H. diminuta were found in concentrated stools. After one month treatment with oral metronidazole for pain and tinidazole, followed by by three cycles fo 25 mg praziquantel per kg/day. No further complications were reported.
Tena, D. et al. (1998) Human Infection with Hymenolepis diminuta: Case Report from Spain. Journal of Clinical Microbiology 36: 2375-2376.