Table 2

 Diagnoses prior to identification of correct diagnosis

Initial diagnosis Number (%) of patients
Mechanical bowel obstruction9 (45)
Constipation4 (20)
Idiopathic megarectum or megacolon and constipation3 (15)
Sigmoid volvulus1 (5)
Pseudo-obstruction1 (5)
Vesico-ureteric distension and acute renal failure1 (5)
Abdominal migraine/periodic syndrome1 (5)