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Capsule Retention Caused by Cryptogenic Multifocal Ulcerous Stenosing Enteritis.

INTRODUCTION
Cryptogenic multifocal ulcerous stenosing enteritis (CMUSE) is a rare illness, and capsule retention (CR) has been reported in a few cases of CMUSE.


METHODS
We present four cases of CMUSE with CR. None of the patients showed any symptoms or signs of small bowel obstruction before a capsule endoscopy (CE) and denied a history of any non-steroidal anti-inflammatory drugs intake, radiotherapy treatment, or abdominal surgery.


RESULTS
CE disclosed circumferential stenoses with or without ulcers in the small bowel, some accompanied by mucosal oedema, white spots and nodules. All patients underwent elective surgery to remove the retained capsule and resect the lesions.


CONCLUSION
CE plays a positive role in diagnosing CMUSE. CE findings are as important as CR to alert for the diagnosis of CMUSE. The association between CMUSE and intestinal lymphangiectasia deserves further study.