Retropharyngeal lipoblastoma causing severe pediatric obstructive sleep apnea

Lipoblastomas are benign neoplasms of white adipose which usually occupy the trunk and limbs in pediatric patients. They can seldomly involve head neck, as a lateral cervical mass. Magnetic resonance imaging is most useful modality for identifying these lesions. Treatment involves complete excision, patients followed with serial exams and/or recurrence more common neck. Here we present an exceedingly rare case retropharyngeal lipoblastoma two-year-old male causing severe obstructive sleep apnea was identified during adenotonsillectomy. As this mass be mistaken other masses space, review differential diagnoses, imaging, histopathologic features neoplasm, responsible upper airway obstruction case.