Retromaxillary Pneumatization of Posterior Ethmoid Air Cells: Novel Description and Surgical Implications

Conclusion
Retromaxillary extension of PE air cells varies considerably and requires attention during ESS. Residual undissected retromaxillary cell is a common finding in revision ESS and can contribute to inadequate disease clearance.

Source: Otolaryngology - Head and Neck Surgery - July 31, 2016 Category: ENT & OMF Authors: Herzallah, I. R., Saati, F. A., Marglani, O. A., Simsim, R. F. Tags: Sinonasal Disorders Source Type: research