Diagnosing paediatric mediastinal lipoblastoma using ultrasound-guided percutaneous needle biopsy: review and report.

Lipoblastoma is a rare tumor of embryonal fat occurring predominantly in the first three years of life. This benign tumor has potentials to local invasion and rapid growth. We reported a rare case of mediastinal lipoblastoma. The computed tomography (CT) and ultrasound (US) features, and the roles of percutaneous transthoracic US-guided needle biopsy, are discussed.