We report the case of a 3-year-old boy who was brought to the emergency department for evaluation of a prolonged upper respiratory infection and diminished neck movement. Computed tomography identified a unilocular abscess extending from the level of C2 inferiorly to the diaphragm at the level of the T9 vertebral body. We successfully treated this transcervical, transthoracic infection surgically via a transoral approach to the retropharyngeal abscess combined with catheter drainage and irrigation of the abscess cavity at a depth of 13 cm. At 25 months of follow-up, the patient exhibited no evidence of recurrent disease or postsurgical complications. In this article, we describe our minimally invasive technique for managing unusual deep-space neck infections in children.