Ascariasis infection of the colon: MDCT evaluation.

Ascariasis is the most common helminth infection in the world and is a common cause of abdominal symptoms worldwide. Although rare in the United States, isolated cases do occur in the Southwestern States. We present a case of a 34-year-old woman who presented to the emergency room with abdominal pain and diarrhea. The diagnosis of ascariasis was made on CT scan.