the lesions responsible for haemorrhage were colonic angiodysplasia ( 52 patients ) , small bowel vascular anomalies ( 16 ) , meckel 's diverticula ( nine ) , small bowel smooth muscle tumours ( seven ) , gastric vascular anomalies ( four ) , chronic pancreatitis ( three ) , colonic diverticular disease ( three ) and 16 other miscellaneous lesions .
C0021852
small bowel
C0345832
small bowel