The pars tensa is the tense portion of the tympanic membrane, or eardrum.
What is the Pars Tensa?
It is made up of three layers: the outer skin layer, the middle fibrous layer, and the inner mucous membrane layer. The pars tensa is the larger of the two parts of the tympanic membrane, and it covers most of the surface of the eardrum.
What is the difference between pars tensa and pars flaccida?
The pars flaccida is the flaccid, or loose, portion of the tympanic membrane. It is located superiorly to the pars tensa, and it is made up of two layers: the outer skin layer and the inner mucous membrane layer. The pars flaccida is smaller than the pars tensa, and it does not contain a middle fibrous layer.
What are the quadrants of pars tensa?
The pars tensa is divided into four quadrants:
- The anterosuperior quadrant is located in the upper, front part of the eardrum.
- The posterosuperior quadrant is located in the upper, back part of the eardrum.
- The anteroinferior quadrant is located in the lower, front part of the eardrum.
- The posteroinferior quadrant is located in the lower, back part of the eardrum.
What is pars tensa retraction?
Pars tensa retraction is a condition in which the pars tensa of the tympanic membrane pulls inward. This can be caused by a variety of factors, including:
- Chronic ear infections
- Barotrauma
- Otosclerosis
- Tumors
Pars tensa retraction can cause a variety of symptoms, including:
- Hearing loss
- Tinnitus
- Ear pain
- Dizziness
If you are experiencing any of these symptoms, it is important to see an audiologist or otolaryngologist (ear, nose, and throat doctor) for diagnosis and treatment.
Conclusion
The pars tensa is an important part of the tympanic membrane, and it plays a vital role in hearing. Pars tensa retraction can cause a variety of symptoms, and it is important to see a doctor if you are experiencing any of these symptoms.