A CASE OF TUBERCULOUS PERITONITIS DIAGNOSED BY QUANTIFERON^®TB-2G, EXPLORATORY LAPAROSCOPY, AND BIOPSY

Abstract

A 70-year-old man with dysuria was suspected of having ascites and was referred to our hospital for further examinations. The patient had no history of ascites-related symptoms. Blood test results were normal, with slight elevation of C-reactive protein (CRP) and cancer antigen 125 (CA125) levels. Abdominal echocardiography and computed tomography showed no focal lesions except low to moderate rates of ascites. Upper gastrointestinal endoscopy and colonoscopy also revealed no causative lesion. The levels of adenosine deaminase (ADA) and CA125 in the ascites were high and the tuberculin and QuantiFERON^®TB-2G (QFT) tests were positive. Thus tuberculous peritonitis was suspected. The final diagnosis of tuberculous peritonitis was made on the basis of laparoscopic biopsy findings. Tuberculous peritonitis is rare ; hence, it is difficult to diagnosis this condition on the basis of clinical findings and examinations. We found that the combination of QFT and exploratory laparoscopy was useful in diagnosing tuberculous peritonitis.