The life cycle extends up to 2 months. After ingestion, the eggs hatch in the stomach and small intestine; the larvae migrate to the ileum, caecum, or appendix and take 15 days to mature. When fertilized worm migrates to the anus, up to 11 000 eggs are expelled.
Transmission methods are direct spread, scratching, autoinfection, or exposure to viable eggs from environmental objects. (Caldwell, 1982) Humans are the exclusive hosts; no evidence of domestic animals or canine reservoirs exists. Extraintestinal oxyuriasis can cause vaginitis and may extend to the uterus and fallopian tubes, reaching the ovaries and peritoneum in females (Cook, 1994).
A 64-year-old female was referred to the outpatient department of the Bulovka University Hospital for dull lower abdominal pain. She had not undergone any gynecological examinations within the last six years. Clinical history revealed no risks for hereditary oncological diseases. However, she had poorly controlled type II diabetes mellitus requiring insulin therapy. On physical examination, the left abdomen was filled with a solid mass, partially fixed to the pelvis. Ultrasonography revealed tumorous infiltration of the left lower abdomen of dimensions 85x40x56 mm. According to the international ovarian tumor analysis–assessment (IOTA-ADNEX) the calculated risk malignancy was 34.5 % with possible infiltration of related organs (Albramowicz J.
After the evaluation by the oncogynecologic team, a hysterectomy with bilateral salpingo-oophorectomy, tumor extirpation, and appendectomy was performed.
The definitive histopathological analysis confirmed an atrophic uterus and atrophic right adnexa. The left fallopian tube measured 7 cm, and the fimbrial part was distended with multiple adhesions to the enlarged left ovary. Histology images showed multiple
eggs were surrounded by granulomatous reaction and chronic inflammatory infiltration with the presence of numerous eosinophils, erythrocytes, and fibrosis. An adult
Consent was obtained from the patient for publication of this report and all accompanying images. The host institution ruled that the approval of the Ethics Committee was not required for this manuscript.
Enterobiasis is Europe’s most common parasitic disease that predominantly affects the juvenile population. The extraintestinal presence of
In symptomatic cases, E.v causes vaginal bleeding, infertility, and peritoneal adhesions can lead to diffuse peritonitis and tubal ovarian abscesses responsible for the hysterectomies or ovariectomies (Mendoza
There is a paucity of literature regarding
Additionally, young pinworms may resist some drugs (Wendt
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