Author: Dr. Stuart Orton-Jones et al. Fascial spaces, also known as fascial compartments or potential spaces, are anatomical regions between layers of fascia in the head and neck that can become pathways for the spread of infections, particularly odontogenic infections. These spaces are not normally apparent unless distended by pus, fluid, or pathological processes.
In the head and neck region, fascial spaces are classified as primary or secondary depending on their proximity to the origin of infection, usually dental in nature. Primary spaces include the submental, submandibular, sublingual, buccal, and canine spaces. Secondary spaces, such as the masticator, pterygomandibular, parapharyngeal, retropharyngeal, and prevertebral spaces, are deeper and more dangerous due to their connection to vital structures.
