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Lipoblastoma is a rare benign tumor arising from embryonic fat; it occurs mainly in the extremities and almost exclusively in infants and children younger than 3 years. We present a case of giant mediastinal lipoblastoma in a 16-month-old boy who presented with acute respiratory distress. The mass was completely excised through a left posterolateral thoracotomy. The postoperative course was uneventful, and the pathologic final diagnosis was lipoblastoma. Although extremely rare, mediastinal lipoblastoma can be life threatening; therefore, it should be included in the differential diagnosis of mediastinal mass in younger subjects., (Copyright © 2011 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)

Chylothorax is a rare disease caused by both traumatic and nontraumatic events. Chylothorax can cause cardiopulmonary abnormalities and significant nutritional, metabolic, and immunologic consequences. We present an exceptional case of chylothorax due to penetrating chest trauma. The diagnosis was made by thoracentesis. Conservative management with nothing by mouth and total parenteral nutrition failed; therefore the patient needed surgical closure of the duct leak.