Hymenolepis nana Human Diagnosed through Colonoscopy: A Case Report

Abstract

Hymenolepis nana infestation is commonly diagnosed in school-aged children and very rarely reported in adults patients in Saudi Arabia. We encountered an adult Saudi patient with a H. nana infection. The patient presented with a chronic history of vague abdominal pain and diarrhoea. He had negative laboratory examinations as well as a negative report on stool sample analysis. After misdiagnosis of his symptoms as Irritable Bowel Syndrome and failed treatment for Irritable Bowel Syndrome, he was readmitted to hospital. After thorough but negative physical, systemic and laboratory examinations, and stool sample microscopy, the patient underwent careful ileo-colonoscopy. He was found to have a H. nana infestation and after treatment with praziquantel, his symptoms were resolved. Our study supports the view that colonoscopy, with careful examination of intestinal mucosa, is a useful diagnostic approach for patients with parasitic infections and negative stool examinations.

The helminth community of a population ofRattus norvegicusfrom an urban Brazilian slum and the threat of zoonotic diseases

“…2017). For example, the cestode Hymenolepis nana is associated with diarrhoea cases, whereas the nematode Angiostrongylus cantonensis can cause eosinophilic meningitis (EoM) (Alicata, 1965; Schantz, 1996; Alruzug et al . 2016).…”

“…Norway rats are also reservoir hosts of several helminths that cause disease in humans (Rafique et al 2009; Hancke et al 2011; Walker et al 2017). For example, the cestode Hymenolepis nana is associated with diarrhoea cases, whereas the nematode Angiostrongylus cantonensis can cause eosinophilic meningitis (EoM) (Alicata, 1965; Schantz, 1996; Alruzug et al 2016).…”

A surprising white thread on a terminal ileoscopy

“…The entire life cycle of H. nana can be established in the gut, making self-infection possible, and it can persist for many years if left untreated, especially in immunosuppressed hosts. Although often asymptomatic, skin eruptions, chronic urticaria and phlyctenular eye disease have been reported (1,3).…”

Study of certain Antioxidant Enzyme Levels in Albino Male Rats Infected with Hymenolepis nana

“…The eggs are described as a round or oval at approximately 40-60 mm length and contain about 4-8 filaments located between inner and outer membranes, 4 hatch in small intestine villi and convert to cysticercoids, then developed to adult tape worms. [5][6][7] The evidence of molecular is unclear that suggests there could be two strains of H. nana, which are preserved in zoonotic and non-zoonotic cycles but this manner stills to be determined. [8][9][10][11] Therefore, current work aims to study the levels of certain antioxidant enzymes in children with H. nana.…”