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Concha bullosa on both sides (marked with asterisks), coronal orientated image from CT. A concha bullosa is a pneumatized (air-filled) cavity within a nasal concha, also known as a turbinate. [1] Bullosa refers to the air-filled cavity within the turbinate. [1] It is a normal anatomic variant seen in up to half the population.
Concha bullosa is an abnormal pneumatization of the middle turbinate, which may interfere with normal ventilation of the sinus ostia and can result in recurrent sinusitis. In some cases, the concha bullosa may be resected to help resolve persistent symptoms.
A common anatomic variant is an air-filled cavity within a concha known as a concha bullosa. [77] In rare cases a polyp can form inside a bullosa. [78] Usually a concha bullosa is small and without symptoms but when large can cause obstruction to sinus drainage. [79]
Sinusitis, also known as rhinosinusitis, is an inflammation of the mucous membranes that line the sinuses resulting in symptoms that may include production of thick nasal mucus, nasal congestion, facial congestion, facial pain, facial pressure, loss of smell, or fever.
The supreme nasal concha or highest nasal concha is a nasal concha (turbinate) that occurs in some cases. It is shaped like a seashell and found on the posterosuperior part of the lateral nasal wall. [2] It lies on the medial surface of the labyrinth of ethmoid above the superior nasal concha.
Similar signs and symptoms can be found in diseases such partial choanal atresia and significant palatine tonsil hyperplasia. Nasal airway blockage can also result from endonasal foreign bodies, nasal concha hyperplasia, and allergic or viral rhinitis. Neoplasms that are benign or malignant in particular need to be ruled out.
A rare and severe variation of fixed drug eruption, generalized bullous fixed drug eruption involves blisters and erosions involving at least 10% of the body's surface area, affecting three of the six anatomic sites: the head and neck, the anterior and posterior trunk, the upper and lower extremities, and the genitalia.
The sphenoidal conchae (sphenoidal turbinated processes) are two thin, curved plates, situated at the anterior and lower part of the body of the sphenoid.An aperture of variable size exists in the anterior wall of each, and through this the sphenoidal sinus opens into the nasal cavity.