“…Clinically, spontaneous retropharyngeal hematoma can present as a triad of features including superior mediastinal obstruction, anterior tracheal displacement and bruising on the neck within 48 hours with subsequent spreading to the chest wall [3]. However, in cases with no history of trauma, early diagnosis in an emergency department may be challenging because of non-specific symptoms, such as neck swelling or refused to feed and respiratory distress, especially when a hematoma is huge in a retropharyngeal space.…”