Retro-maxillary nasal recess: a case report with a new finding

Abstract

Abstract Background Retro-maxillary recess of the nasal cavity is an area that has not yet described in the literature. Objective To report, present, and describe a previously non-reported case which has bilateral retro-maxillary nasal recess by multi-slices computed tomography (MSCT). Case presentation A CT of a 22-year-old male showed bilateral retro-maxillary nasal recess extends beyond the posterior maxillary sinus wall and anterior to the pterygopalatine fossa as an extension of the middle meatus laterally and bounded by the maxillary sinus anterior, the orbital floor superior, the inferior turbinates lateral attachment inferior, and the pterygopalatine fossa anterior. The retro-maxillary nasal recess anteroposterior, lateral, and vertical dimensions were 11.53, 8.24, and 11.6 mm respectively at the left side and 5.6, 4.61, and 6.16 mm respectively at the right side. Conclusion This study reports and describes a new retro-maxillary nasal recess that could represent a new hidden challenging area for ESS.