Bilateral enlarged concha bullosa: a case report and literature review

Abstract

Concha Bullosa (CB) is a common sinonasal anatomical variant, which commonly extends into the middle turbinate. Generally, patients presenting with CB are asymptomatic and often incidentally diagnosed with a non-contrast computed tomography scan of the paranasal sinuses. In cases of extensive pneumatization, large CB may cause significant signs and symptoms-commonly, headaches, nasal obstruction, and hyposmia. With only a few reported cases of large CB in the literature; we herein, report a rare case of an unusually massive bilateral CB that resulted in complete obstruction of the left nasal cavity and partial obstruction of the right nasal cavity, in addition to a review of relevant literature.

Keywords: concha bullosa; giant; middle turbinate pneumatization; nasal obstruction.

Figure 1

Non-contrast CT showing bilateral pnuematized concha bullosa, more prominent on the left pushing the nasal septum to the right side in coronal (a, b), axial (c), and sagittal (d) views.