What is the left fossa of Rosenmüller?

The fossa of Rosenmüller is a bilateral projection of the nasopharynx just below the skull base. It is also called the lateral pharyngeal recess or simply the pharyngeal recess. The fossa is covered by nasopharyngeal mucosa and is the most common site of origin of nasopharyngeal carcinoma (NPC).

What is pharyngeal recess?

The pharyngeal recess (of Rosenmüller) has been identified as the most common site for development of nasopharyngeal carcinomas, a disease involving pathological change of stratified squamous epithelial cells lying in the cleft between the torus tubarius and the superior pharyngeal constrictor muscle.

What is Thornwaldt cyst?

Thornwaldt cysts are rare and benign congenital cysts in the region of the pharyngeal bursa, formed by a communication between the notochord and the nasopharyngeal endoderm. They result from a mechanical obstruction, inflammation, or abscess of the pharyngeal bursa.

Which tonsil is located in the pharyngeal recess?

The pharyngeal tonsils are located near the opening of the nasal cavity into the pharynx. When these tonsils become enlarged they may interfere with breathing and are called adenoids. The palatine tonsils are the ones that are located near the opening of the oral cavity into the pharynx.

What is the pharyngeal fossa?

The pharyngeal fossa or foveola pharyngica is a variant oval or round depression within another inconstant bony excavation, the fossa navicularis, on the ventral surface of the basioccipital clivus.

Can a nasopharyngeal cyst be cancerous?

Types of nasopharyngeal tumors. Several types of tumors can develop in the nasopharynx. Some of these tumors are benign (not cancer), but others are malignant (cancer). It’s important to talk with your doctor about what type of tumor you might have.

Is Thornwaldt cyst a tumor?

Tornwaldt’s cyst is a benign tumour, usually located in the midline of the posterior nasopharyngeal wall. MRI is considered the best imaging examination to diagnose this inflammatory benign cyst. It is commonly asymptomatic and requires no treatment.

Where is the fossa of Rosenmuller located in the body?

The fossa of Rosenmüller, also known as the posterolateral pharyngeal recess, is the most common site of origin for nasopharyngeal carcinoma. It is located superior and posterior to the torus tubarius (the posterior projection of the cartilaginous portion of the Eustachian tube) and is formed by mucosal reflection over the longus colli muscle 2.

What kind of cyst is in the fossa?

A fossa cyst is a liquid-filled cyst which forms in a fossa area in the body. The most troublesome type of cyst is located in the brain, also known as an arachnoid fossa cyst, or cranial cyst.

Can a cyst in the fossa cause seizures?

The most dangerous fossa cyst is a posterior arachnoid cyst, which occurs in the back of the brain. If a cyst grows in that area of the brain, it puts pressure on the cerebellum and brain stem and can cause nausea, vomiting, headaches, seizures, imbalance and blackouts.

Where is the posterior fossa on the skull?

The posterior fossa on the skull is located near the top of the spinal cord and any cyst in this region should be treated to prevent a blockage of the spinal fluid and damage to the nerves which travel through this region into the brain. Is Amazon actually giving you the best price? This little known plugin reveals the answer.