Abstract
Background: A wide variety of diseases in children can present with peripheral lung lesions. Minimally invasive percutaneous techniques are preferred diagnostic tools when thoracoscopic resection is not indicated. Significant improvements in US resolution have increased the range of its applications for many diagnostic and therapeutic purposes. Objective: To determine the adequacy and safety of US-guided biopsy of peripheral pulmonary lesions in children. Materials and methods: A retrospective review was performed of the clinical, imaging and pathology records of 33 children (13 females and 20 males) in whom 38 US-guided percutaneous lung lesion biopsies had been performed between January 1996 and March 2004. Their mean age was 8.3 years (range 1–19 years, median 6.6 years). All procedures were done under general anesthesia and controlled respiration. Two techniques were used: a single-needle technique and a coaxial-needle technique. In each case, the data recorded included age, sex, lesion’s location and size, number of cores, pathology results (adequate, inadequate and indeterminate), and complications. In order to categorize the sample, the lesions were divided into four groups based on the size of the pleural surface: group 1 1–5 mm, group 2 6–10 mm, group 3 11–20 mm, and group 4 21 mm or more. Results: The mean pleural surface size of the lesions was 12 mm (range 2.3–24 mm). The coaxial-needle technique was used for 13 biopsies and the single-needle technique for 25 biopsies. Of the 38 biopsies, 32 were considered adequate (technical success 84%), 4 were truly inadequate, and 2 were indeterminate at the time of the biopsy, requiring surgical biopsy for confirmation. Minor complications occurred following 44% of the procedures, including: pain (n=5), small pneumothorax (n=4), pulmonary hematoma (n=4), atelectasis (n=4), small hemothorax (n=3), respiratory distress (n=1) and hemoptysis (n=1). No major complications occurred. No significant correlation was found between the size of the pleural surface and technical success (P=0.106) or the incidence of complications (P=0.23). Minor complications occurred following 6 out of 13 procedures using the coaxial-needle technique (16% of total) and following 11 out of 25 procedures using the single-needle technique (28% of total), with no statistically significant difference (P=0.1081). Conclusion: This small retrospective study suggests that US-guided lung biopsies are a safe and adequate method to sample peripheral pulmonary lesions in children, with a high rate of technical success and low morbidity, even for lesions with a small pleural surface (<5 mm).
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Fontalvo, L.F., Amaral, J.G., Temple, M. et al. Percutaneous US-guided biopsies of peripheral pulmonary lesions in children. Pediatr Radiol 36, 491–497 (2006). https://doi.org/10.1007/s00247-005-0094-x
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DOI: https://doi.org/10.1007/s00247-005-0094-x