Peripharyngeal space

Peripharyngeal space (also known as the lateral pharyngeal space or pharyngomaxillary space) is a potential space in the head and neck region. It is one of the deep compartments of the head and neck and is a part of the deep neck spaces.

Etymology

The term "Peripharyngeal" is derived from the Greek words "peri" meaning around, and "pharynx" referring to the throat.

Anatomy

The peripharyngeal space is located on each side of the neck and is shaped like an inverted pyramid. It is bounded by the skull base superiorly and the hyoid bone inferiorly. The medial boundary is formed by the superior constrictor muscle of the pharynx and the lateral boundary by the ramus of the mandible and the parotid gland.

The space is divided into two compartments: the anterior compartment, also known as the prestyloid space, and the posterior compartment, also known as the retrostyloid space or carotid space.

Clinical significance

The peripharyngeal space is clinically significant as it is a potential space for the spread of infections and tumors. Infections can spread from the oral cavity and pharynx to the peripharyngeal space, leading to peripharyngeal abscess. Tumors can also spread from the nasopharynx, oral cavity, or oropharynx to the peripharyngeal space.

Related terms

• Deep neck space
• Pharynx
• Parotid gland
• Hyoid bone
• Superior constrictor muscle
• Ramus of the mandible
• Prestyloid space
• Retrostyloid space
• Carotid space