retropharyngeal spacemedical dictionary

That part of the peripharyngeal spatium located posterior to the pharynx. In the normal adult it measures 4 mm (at C3 level), but is considered abnormal when greater than 7 mm.

Can be icreased with a cervical spine fracture, retropharyngeal abscess.

Synonyms: spatium retropharyngeum, postpharyngeal space.

(21 Jun 2000)