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  • Title: Abdominal tuberculosis following kidney transplantation: clinicopathologic features and follow-up in a unique case series.
    Author: Rocha A, Lourenço L, Viana L, Taver M, Gaspar M, Medina-Pestana JO.
    Journal: Clin Transplant; 2013; 27(5):E591-6. PubMed ID: 23924235.
    Abstract:
    BACKGROUND: Kidney transplant recipients are at a high risk of opportunistic infection. The aims of this study were to describe the epidemiology, clinical features, and prognosis of abdominal tuberculosis (TB) in kidney transplant recipients. METHODS: All cases of abdominal TB that occurred in kidney transplant recipients at our center between 1998 and 2010 were retrospectively reviewed. Detailed demographic data, clinical profile information, and the treatment response were recorded. RESULTS: Among the 7833 kidney transplantations performed during the study period, eight patients (0.1%) developed abdominal TB. There were four men and four women in this group. The mean age of the patients was 44 ± 12 yr. The time from kidney transplantation to TB was 6.7 ± 3.4 yr. The symptoms were weight loss (87.5%), diarrhea (87.5%), fever (75%), abdominal pain (62.5%), and lower gastrointestinal bleeding (37.5%). The delay between the identification of the clinical symptoms and the diagnosis was an average of six months. The diagnosis was confirmed histopathologically for most patients. The cecum and ascending colon were the most common sites involved. Two patients required surgical intervention. Five patients received a 4-drug regimen, and three had hepatotoxicity. The median length of antituberculous therapy was nine (6-12) months. Five patients lost their graft. Overall, the hospital mortality was 12.5%. CONCLUSIONS: Kidney transplantation increases the risk of TB, particularly as an extrapulmonary disease. The symptoms of infection are often attenuated, leading to delayed diagnosis. Therefore, a careful approach to the patient and supportive data are necessary to make the final and timely diagnosis.
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