Quadruple Concha Bullosa : A Very Rare Intranasal Turbinate Anatomical Variant

The nasal turbinates are important structures in the nasal cavity. Pneumatization of the turbinates, also known as concha bullosa, is a common anatomical variant of the nasal cavity. Concha bullosa usually arises from the middle turbinates and rarely in the superior and inferior turbinates. Pneumatization of the uncinate process, also known as an uncinate bulla, is very rare and most cases are asymptomatic, although it may cause nasal obstruction in some cases. Quadruple concha bullosa refers to case of triple concha bullosa (superior, middle, and inferior concha turbinates concha bullosa) accompanied by an uncinate bulla, although this has never been reported. Here, we report a case of quadruple concha bullosa and discuss it along with a review of the literature. (J Clinical Otolaryngol 2017;28:252-255)