Neonatal retropharyngeal cellulitis due to group B streptococcus.

Two neonates who presented with histories of poor feeding, irritability and noisy breathing had group B streptococcal (GBS) bacteremia and retropharyngeal cellulitis. One infant also had submandibular cellulitis. Retropharyngeal cellulitis has not been recognized as a manifestation of GBS disease. Evaluation of the upper airway should be part of the workup of any sick infant with noisy breathing and/or grunting. Retropharyngeal tissue enlargement may be an early indicator of GBS disease.