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Abdominal tuberculosis in a Nigerian teaching hospital.

Abdominal tuberculosis (TB) alone or with disseminated TB is known to mimic other conditions with non-specific investigation findings. This study aims to evaluate the clinical presentations and investigation findings of patients in our setting. The clinical records of 47 patients diagnosed as abdominal TB between January 1986 and December 2005 at the Wesley Guild Hospital Unit of the Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria, were reviewed. Fifty-five percent of the patients were women and mean age was 28 years. Common presenting symptoms and signs were abdominal pain 76.6%; ascites 59.6%; weight loss 53.2%; fever 29.8%. Average duration of symptoms before presentation was 3 months. Thirteen percent of patients had earlier been treated for pulmonary tuberculosis in the hospital. ESR was elevated in 89%, ultrasound scans of abdomen were abnormal in 68%, showing ascites, hepatomegaly and or enlarged nodes. Mantoux test was positive in 33% and ascitic fluid was diagnostic for TB in 29%. Chest X-ray showed abnormal findings in 25% of the patients and sputum was positive for AFB in 14.3%. Three patients were HIV positive. Forty patients (85.1%) recovered after receiving anti-TB drugs for a period of 9-12 months. Seven patients, including the three with HIV infection died. Death of 2 patients was due to unrelated causes. We conclude that abdominal TB should be suspected in patients with chronic abdominal condition and ascites as no laboratory or radiological finding is gold standard in its diagnosis. However the condition carries good prognosis if promptly diagnosed and treated.