The enlargement of the middle concha as a pneumatized cavity is defined as concha bullosa. Concha bullosa is one of the most frequently encountered anatomic variations inside the nose. The histopathological changes caused by the infections that occur following the impairment of aeration of the conchal cavity filled with air are frequently found. Polyps, submucous cysts, cholesteatomas, ossifying fibromas and pyoceles have been found in concha bullosa. However, in our literature search, we have found only one case published up to date where presence of mycosis in concha bullosa was reported. In this article we presented a 19-year-old female patient. The patient was admitted to our clinic with the complaints of headache, left ocular pain, and nasal obstruction in July 2009. In her nasal endoscopy and paranasal computed tomographic examination, nasal septum deviation and concha bullosa were detected, calcified areas inside her left middle concha bullosa were noted. In the magnetic resonance imaging examination performed thereon, we found findings confirming the presence of mycosis. The patient was endoscopically operated. The histopathological examination of the removed material was reported as aspergilloma. This case was found worth presenting due to the location of concha bullosa and its rare occurrence in this location.
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