Oxyuris granulomas of pelvic peritoneum and appendicular wall

Infestation with Enterobius (Oxyuris) vermicularis is very common but seldom produces lesions and even more rarely causes granulomas. Two cases of oxyuris granulomas/nodules), one in the serosa of ovaries and left fallopian tube in a female of 32-years and the other in the submucosa of the appendix in a 10-year old girl are identified by the presence of true necrotizing granulomas containing the parasite. The pathogenesis and differential diagnosis of abdominal granulomas is discussed.