Eosinophilic enteritis presenting as intussusception in adult.

Eosinophilic gastroenteritis is defined as a disorder that selectively affects the gastrointestinal tract with eosinophil-rich inflammation in the absence of any known causes for eosinophilia. The clinical manifestations vary according to the site of the eosinophilic infiltrated layer of the bowel wall. Eosinophilic enteritis presenting as intussusception in adult has not been previously reported in the literature. Especially, making the diagnosis of intussusception in adults is often difficult due to the variable clinical findings. In our case, the correct diagnosis of intussusception due to eosinophilic enteritis was arrived at rather easily based on the ultrasonography and endoscopic biopsy. The patient was treated with oral prednisolone at 30 mg/day for 7 days, and then the drug was tapered off for 2 months; we didn't perform surgery. He has been asymptomatic for about 1 year after discharge without disease recurrence.