cases in paediatric surgery,trichobezoar

in my internship..now i'm posted in paediatric surgery.2 days back v admitted a case,12 yrs old female child from emergency for acute intestinal obstruction for surgery.all of us thought that it might be a case of bands or volvulus but surprisingly it was a case of trichobezoar in small bowel.nobody,even her parents knew that she was eating hair.they just thought that she was playing with comb.