Mediastinal lipoblastoma: a rare entity discovered on physical exam

Description 

A 3-year-old male with no significant medical or surgical history presents to his paediatrician for annual examination. On auscultation, he was noted to have diminished left-sided breath sounds and heart sounds displaced to the right. The patient had no complaints of pain, difficulty swallowing, shortness of breath or dyspnoea on exertion. An initial chest X-ray was performed which demonstrated complete opacification of the left hemithorax with mediastinal shift towards the right. This was followed by a radiation dose reduced CT of the chest with intravenous contrast, which demonstrated a 7.8x7.4x13.3 cm fat density mass filling the majority of the left lung and extending to the pleura and mediastinum (figure 1A). The patient was optimised for the operating room and underwent a left lateral thoracotomy. Intraoperatively, the mass was identified and noted to have fusion to the pericardium and pleura in its superior margin with all other...

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