SUCCESSFUL TREATMENT OF ENTERIC ANISAKIASIS THROUGH ENDOSCOPIC EXTRACTION USING A DOUBLE-BALLOON ENTEROSCOPE

Abstract

A 52-year-old man was referred to our hospital with intermittent abdominal pain. He had consumed raw fish 1 day prior to the onset of his symptom. Abdominal ultrasonography and computed tomography were conducted, which indicated thickening of the ileal wall and accumulation of ascites. Based on his clinical history and these images, enteric anisakiasis was suspected. He then underwent double-balloon enteroscopy (DBE) via the anal approach. DBE revealed edematous mucosa in the ileum and an Anisakis sp. larva invading the ileal wall. The entire larva was successfully retrieved using biopsy forceps, following which his symptoms completely resolved. Thus, we believe that, when enteric anisakiasis is suspected, DBE should be performed for diagnosis and endoscopic extraction.