[The use of computed tomography guided needle biopsy in thoracic lesions in childhood].

Percutaneous fine-needle aspiration biopsy (FNAB) is widely used in adult but not in pediatric patients, probably because young patients cooperate little. Twenty-six CT-guided FNABs were performed in children aged 40 days to 15 years (mean: 11.6 years) from January through December, 1993. The lesions were found in anterior mediastinum (17 cases), posterior mediastinum (5 cases) and lung (4 cases). Some specimens were fixed for cytology and some were cultured. Twenty-five of 26 biopsies (96.1%) provided adequate material for the cytologic assay, while in one case the result was poor because of much necrotic material. Cytologic findings were compared with postoperative biopsy results in 9 cases and confirmed by follow-up in 17 non-surgical lesions.