Retention cysts of the maxillary sinuses are usually discovered incidentally on a plain sinus radiograph, or cross-sectional imaging of the head. They do not usually cause symptoms.
They are slow growing lesions, but mucosal and cortical integrity is preserved.
On radiographs, they are radiopaque, dome-shaped structures with a rounded edge, located on the floor of the maxillary sinus.
Treatment and management
They should be followed up clinically and by radiographic examination. Mostly no treatment is indicated, because of their high spontaneous regression rate 1,2.
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- 1. Wang JH, Jang YJ, Lee BJ. Natural course of retention cysts of the maxillary sinus: long-term follow-up results. Laryngoscope. 2007;117 (2): 341-4. Laryngoscope (full text) - doi:10.1097/01.mlg.0000250777.52882.7a - Pubmed citation
- 2. Donizeth-Rodrigues C, Fonseca-Da Silveira M, GonçAlves-De Alencar AH et-al. Three-dimensional images contribute to the diagnosis of mucous retention cyst in maxillary sinus. Med Oral Patol Oral Cir Bucal.;18 (1): e151-7. Free text at pubmed - Pubmed citation
Synonyms & Alternative Spellings
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|Maxillary sinus mucous retention cyst||✗|
|Maxillary sinus mucous retention cysts||✗|