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The hospital records of 125 children, aged 14 years or less treated for abdominal tuberculosis (TB) at Jawahar Lal Nehru Medical College and Hospital, Ajmer, India between January 1987 and December 1996, were studied to analyse the various patterns of abdominal TB in children and to evaluate the role of various investigations in researching a diagnosis. Abdominal pain was the presenting symptom in 100 (80 per cent) patients. Detectable ascites was present in 55 (44 per cent) and visible peristalsis in 45 (36 per cent) cases. Laboratory investigations and radiographs were not conclusive in the majority of the patients. In 45 (36 per cent) patients in whom no tissue diagnosis was available, the diagnosis was based on a dramatic clinical response to anti-tuberculous chemotherapy. Fifty (40 per cent) patients were treated conservatively with anti-tuberculous drugs alone; the remaining patients underwent laparotomy for diagnosis and relief of bowel obstruction. There were no post-operative deaths and on follow-up, good recovery was observed in these patients. Abdominal TB in children is of a non-specific nature and defies diagnosis with non-invasive investigations; laparotomy is required for a definitive diagnosis in the majority of the patients. However, if a high index of suspicion is maintained in endemic areas, a therapeutic trial of anti-tuberculous chemotherapy is justified.