Pars Tensa Retractions

 

In the same way that the pars flaccida is vulnerable to retraction, the pars tensa may also become retracted.  This usually occurs at the posterosuperior section of the pars tensa, where it may involve the long process of the incus, stapes and other middle ear structures.

 

 

An anterosuperior local retraction of the pars tensa following the insertion of ventilation tube with some retraction of the pars flaccida and an effusion.