The prevalence of Enterobius vermicularis infection among preschool children was reported to be low based on a 5-year screening program in Taipei City, Taiwan. The Taipei City government intended to terminate the E. vermicularis screening program among preschool children. Thus, we were entrusted with confirming whether pinworm infections among preschool children in Taipei City had truly decline...

A solitary granuloma containing a gravid female pinworm was incidentally found in the fallopian tube of a 27 year old woman. On rare occasions, pinworms have been found outside the gastrointestinal tract, most frequently in the peritoneal cavity. The reported cases have been found at all levels of the female reproductive tract from the introitus to the fallopian tube. Thus, the hypothesis is su...

Microevolutionary processes in parasites are driven by factors related to parasite biology, host abundance and dispersal, and environmental conditions. Here, we test the prediction that isolation of host populations results in reduced genetic diversity and high differentiation among parasite populations. We conducted a population genetic analysis of two pinworms, Trypanoxyuris minutus and Trypa...

Enterobius vermicularis is responsible for a variety of diseases but rarely affects the liver. Accurate characterisation of suspected liver metastases is essential to avoid unnecessary surgery. In the presented case, following a diagnosis of rectal cancer, a solitary liver nodule was diagnosed as a liver metastasis due to typical radiological features and subsequently resected. At pathological ...

A 6-year-old girl presented to the emergency department after experiencing genital pain, which had lasted for a few hours, in the middle of the night. A physical examination revealed a moving filamentous object (length: about 7 mm) on her external genitalia. The sharp pain disappeared when the object was removed. By using light microscopy, it was identified as an ovulating female pinworm that h...

We here report a case of a young man who presented to his general practitioner with diarrhea. Inflammatory bowel disease was suspected and a colonoscopy showed aphthous lesions suggestive of Crohns' disease but biopsies revealed eggs of Enterobius vermicularis. When treated for this parasite, his symptoms were alleviated and a followup colonoscopy revealed a normal colon and distal ileum. Enter...

Introduction. Vulvovaginitis accounts for 25% of all pediatric gynecology consultations. Objective. To assess the etiology of vulvovaginitis based on age and Tanner staging of breast development. Material and Methods. Descriptive, cross-sectional study conducted between January 1st and December 31st, 2011. Patients with vulvovaginitis were assessed based on two outcome measures: age group (GI: ...