Aplasia and hypoplasia of the maxillary sinus: A case series

Abstract

Maxillary sinus aplasia and hypoplasia are rare conditions that can cause symptoms such as headaches
and voice alteration. The majority of patients are asymptomatic, but these conditions must be noticed
for importance of differential diagnosis such as infection and neoplasms. Conventional radiographs
could not differentiate between infl ammatory mucosal thickening, neoplasm, and hypoplasia of the
sinus. Computed tomography (CT) and also cone beam computed tomography (CBCT) are the
proper modalities to detect these conditions. In the present study, CBCT fi ndings of three cases
with maxillary sinus hypoplasia and aplasia are reported.
Key Words: Aplasia, cone beam computed tomography, hypoplasia, maxillary sinus