A 77-year-old woman was admitted to our hospital complaining of nausea and vomiting. Computed tomography scan showed a torus lesion, which indicated indigitation caused by small bowel tumor. We performed an emergency operation because of suspected indigitation with ischemia. We had planned laparoscopic ileus release. At surgery, we found the small bowel lesion with congestion suspicious of small bowel tumor. We removed the lesion via an umbilical wound and performed partial small bowel excision to avoid bowel overexposure. The postoperative course was uneventful, and the patient was discharged on hospital day 14. In this case of food ileus, it was difficult to rule out indigitation of small bowel tumor caused by swallowing a mushroom whole.