The parapharyngeal space (PPS) is a potential space lateral to the upper pharynx. The PPS is shaped like an inverted pyramid, extending from the skull base superiorly to the greater cornu of the hyoid bone inferiorly.
What does parapharyngeal space mean?
Listen to pronunciation. (PAYR-uh-fuh-RIN-jee-ul …) A triangular area near the pharynx (throat), between the base of the skull and the hyoid bone (the bone under the tongue).
What is the retropharyngeal space?
The retropharyngeal space (RPS) is an anatomical region that spans from the base of the skull to the mediastinum. Its location is anterior to the prevertebral muscles and posterior to the pharynx and esophagus.
What causes parapharyngeal mass?
The majority of these tumors are benign, most of them arising from the deep lobe of the parotid gland. Tumors may also arise from minor salivary glands as well as from the nerves in this region.What space is the retropharyngeal space continuous with?
Retropharyngeal spaceTA98A05.3.01.118TA22884FMA84965Anatomical terminology
Where is parapharyngeal space?
The parapharyngeal space (PPS) is a potential space lateral to the upper pharynx. The PPS is shaped like an inverted pyramid, extending from the skull base superiorly to the greater cornu of the hyoid bone inferiorly.
What divides the parapharyngeal space?
Divisions. The parapharyngeal space is divided into 2 parts by the fascial condensation called the aponeurosis of Zuckerkandl and Testut (stylopharyngeal fascia – see diagram), joining the styloid process to the tensor veli palatini.
What is parotid space?
The parotid space is a roughly pyramidal space, the broad elongated base facing laterally, formed by cervical fascia overlying the superficial lobe of the parotid gland, and its apex pointing medially.It is traversed by the external carotid artery, retro-mandibular vein and facial nerve.What causes parapharyngeal abscess?
Parapharyngeal abscesses are incorporated into a group of infections known as deep neck infections. 1, 2 These infections generally occur due to nontraumatic reasons in young children, such as a prior throat infection or an infection of dental origin that has seeded into the deeper tissue structures and lymph nodes.
What's a pharyngeal?1 : relating to or located in the region of the pharynx. 2a : innervating the pharynx especially by contributing to the formation of the pharyngeal plexus the pharyngeal branch of the vagus nerve. b : supplying or draining the pharynx the pharyngeal branch of the maxillary artery.
Article first time published onWhat is danger space of neck?
Danger space. The danger space is immediately posterior to the retropharyngeal space and immediately anterior to the prevertebral space, between the alar and prevertebral divisions of the deep layer of the deep cervical fascia. It extends from the skull base to the posterior mediastinum and diaphragm.
What is danger space?
The danger space or alar space, is a region of the neck. The common name originates from the risk that an infection in this space can spread directly to the thorax, and, due to being a space continuous on the left and right, can furthermore allow infection to spread easily to either side.
What is the visceral space?
The visceral space is a neck area spanning from the hyoid bone level to the mediastinum, within the middle layer of the deep cervical fascia, and containing the thyroid and parathyroid glands, hypopharynx, larynx, trachea, oesophagus and paraesophageal lymph nodes.
What are the Parapharyngeal and the retropharyngeal spaces?
The parapharyngeal space connects posteromedially with the retropharyngeal space and inferiorly with the submandibular space. Laterally, it connects with the masticator space. The carotid sheath courses through this space into the chest. This space provides a central connection for all other deep neck spaces.
Where is the lateral pharyngeal space?
The parapharyngeal space (or lateral pharyngeal or pharyngomaxillary space) is in the upper neck above the hyoid bone. It is an inverted cone-shaped potential space that extends from the hyoid bone to the base of the skull.
What is danger space in dentistry?
The danger space is a deep compartment of the head and neck located behind the true retropharyngeal space, extending from the skull base to the mediastinum.
What's in carotid sheath?
The carotid sheath plays an important role in head and neck anatomy and contains several vital structures, including the carotid artery, jugular vein, vagus nerve, and sympathetic plexus. It arises in the base of the neck and terminates at the skull base. It is derived from mesoderm.
What is the cure for first bite syndrome?
Botulinum Toxin Injection: Botulinum toxin (Botox) is a protein that blocks the release of acetylcholine. It can decrease pain in patients with first bite syndrome. The injection is given into the painful area in the parotid gland. The number of injections varies from 1-3.
Why is pleomorphic adenoma called mixed tumor?
Pleomorphic adenoma, the most common salivary gland tumor, is also known as benign mixed tumors (BMT’s), because of its dual origin from epithelial and myoepithelial elements.It is the commonest of all salivary gland tumors constituting up to two-thirds of all salivary gland tumors.
What is alar fascia?
The alar fascia is a thin fibroareolar membrane separating the (anterior) true retropharyngeal space from the (posterior) danger space. It is the ventral component of the deep layer of the deep cervical fascia.
How do you drain a parapharyngeal abscess?
Treatment of Parapharyngeal Abscess Posterior abscesses are drained externally through the submaxillary fossa. Anterior abscesses can often be drained through an intra-oral incision, although larger abscesses extending beyond the parapharyngeal space may also require an external surgical approach.
Where is a parapharyngeal abscess?
A parapharyngeal abscess is a deep neck abscess. Symptoms include fever, sore throat, odynophagia, and swelling in the neck down to the hyoid bone. Diagnosis is by CT. Treatment is antibiotics and surgical drainage.
How is parapharyngeal abscess diagnosed?
CT scan is the best imaging examination for diagnosis and follow-up of parapharyngeal abscess. Non-complicated parapharyngeal abscesses require first-line medical management (intravenous antibiotics (amoxicillin and clavulanic acid) combined with steroids) and follow-up CT scan.
What causes Frey's syndrome?
Frey’s Syndrome is a syndrome that includes sweating while eating (gustatory sweating) and facial flushing. It is caused by injury to a nerve, called the auriculotemporal nerve, typically after surgical trauma to the parotid gland.
How many glands are in the mouth?
Salivary glandThe three main paired salivary glands.DetailsSystemDigestive systemIdentifiers
Where is sublingual gland located?
The sublingual gland is the smallest of the three major salivary glands [1], which also include the parotid and submandibular glands. The sublingual gland lies between the muscles of the floor of the oral cavity, which include the geniohyoid muscle, hyoglossus muscle medially, and the mylohyoid muscle inferiorly.
Is pharynx the throat?
The hollow tube inside the neck that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes to the stomach). The pharynx is about 5 inches long, depending on body size. Also called throat.
Is the larynx above the pharynx?
The larynx is located within the anterior aspect of the neck, anterior to the inferior portion of the pharynx and superior to the trachea.
What is the uppermost part of the pharynx?
The upper portion of the pharynx, the nasopharynx, extends from the base of the skull to the upper surface of the soft palate. It includes the space between the internal nares and the soft palate and lies above the oral cavity.
What is the Prevertebral space?
Prevertebral space. The prevertebral space is located anterior to the vertebral bodies and posterior to the prevertebral division of the deep layer of the deep cervical fascia. It lies just posterior to the danger space (see below).
What forms the retropharyngeal space?
The retropharyngeal space (between the posterior pharyngeal wall and the prevertebral layer of deep cervical fascia) contains loose connective tissue and lymph nodes that drain the nasopharynx, paranasal sinuses, middle ear, teeth, and adjacent bones.
