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Open lung biopsy for diffuse interstitial lung disease in children.

The aim of the study was to investigate the contribution that open lung biopsy makes to the management of children with diffuse interstitial lung disease and to review the procedure-related morbidity in comparison with published literature on other biopsy techniques. The authors reviewed the case notes and histology of patients under 18 yrs who had had an open lung biopsy in 1991-1998 for investigation of diffuse interstitial lung disease. The majority of patients returned from theatre breathing spontaneously and without an intercostal drain. Three out of 27 suffered a complication related to the biopsy that required intervention. A clear histological diagnosis was reached in 25/27 patients resulting in a change of management in 15/27. The most common histological patterns were nonspecific interstitial pneumonitis which generally had a favourable prognosis and follicular bronchiolitis/lymphocytic interstitial pneumonitis where prognosis was largely dependent on that of an underlying systemic disorder. It is concluded that open lung biopsy makes a substantial contribution to the management of diffuse interstitial lung disease in children and considering both diagnostic yield and safety, remains the biopsy technique of choice.