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Summary: Background: A medical staff and an administrative staff of our paediatric oncology department have contracted a pulmonary tuberculosis. This is a rare situation and the management of this infection threat in a paediatric oncology department is not clearly defined. Recommendations tell we must treat all patients. Nevertheless, antituberculosis agent expose to increased toxic effects and immunocompromised patients have an increased risk of experiencing progression of latent mycobacterium tuberculosis infection to active tuberculosis disease. Objective: This study aims at the evaluation of a screening and a treatment strategy adapted for a paediatric oncology department. Method: From April 2004 to April 2005, 80 children with a solid tumour were screened for tuberculosis according to a screening and treatment protocol established by a multidisciplinary committee. Two risk groups were defined according to age and immunodepression status. The “high risk” group is composed of less than 2 years old children and children who underwent an haematological peripheral stem cell transplantation. All other children were included in the “low risk” group. The screening was based on clinical, biological and radiological data performed three times spaced out by 2 or 3 months. At the end of each part of screening, the multidisciplinary committee analyzed the results and discussed the utility of an antituberculosis treatment. Results: 80 children (31 boys and 49 girl) with a median age of 7,3years (0,3–24) participated to the screening. Sixty children were still undergoing anticancer treatments. Twenty belonged to the high risk group. The complete screening was performed in 32% of the patients. Three antituberculosis’ treatment were initiated: 2 for prophylaxis purpose and 1 for a tuberculosis prime-infection. A child had an additional check-up because of an abnormal chest X-ray. Our management strategy allowed us to treat significantly less patients when compared to national guidelines (3 vs 80 test Chi-2 p <0.001). No side effects of antituberculosis agents were noted. No tuberculosis has been observed in our population 28 months after the completion of the treatment. Conclusion: The proposed screening allowed us to treat a minimum of children and thus, to reduce the potential toxicity induced by antituberculosis’ treatments. [Copyright &y& Elsevier]