Concha bullosa is an aerated turbinate in the nose. It is a common anatomic variant that can develop a mucocele if obstructed, which can further progress to become a mucopyocele if infected. A mucopyocele can expand and cause destruction of neighboring tissues. A review of the literature revealed only 10 cases previously reported. We describe 2 cases of mucocele and 2 cases of mucopyocele.
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