What is pyriform sinus?

The pyriform sinuses are two small, pear-shaped recesses located on either side of the larynx, specifically in the hypopharynx. They are lined with mucous membrane and are a part of the upper aerodigestive tract.

The pyriform sinuses play a role in swallowing, as food and liquids pass through them on their way to the esophagus. They also help to protect the airway by directing food and liquid away from the trachea during swallowing.

The pyriform sinuses can be a site for the development of tumors, particularly squamous cell carcinoma. Symptoms of tumors in the pyriform sinuses may include difficulty swallowing, ear pain, and neck swelling.

Diagnosis of conditions affecting the pyriform sinuses may involve imaging studies such as CT scans or MRIs, as well as endoscopic examinations.

Treatment for conditions affecting the pyriform sinuses may include surgery, radiation therapy, chemotherapy, or a combination of these. It is important to consult with a healthcare professional if you have any concerns about your pyriform sinuses or experience symptoms such as difficulty swallowing.