delaying operation on the basis of fear of recurrence of crohn 's disease is unrealistic because ( 1 ) indications for operation are complications of the disease that have not responded or can not be expected to respond to medical treatment , ( 2 ) conservative resection primarily removes diseased bowel that will never return to normal , ( 3 ) many patients , perhaps 50 % , will never have recurrence of disease , and ( 4 ) those who have recurrence will have experienced varying periods when they were free of disease and relieved of the serious complications for which their operations were performed .
C0010346
crohn 's
C0021853
bowel