Silent sinus syndrome

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Silent sinus syndrome
Other namesImploding antrum syndrome
SpecialtyENT surgery

Silent sinus syndrome is a spontaneous, asymptomatic collapse of the maxillary sinus and orbital floor associated with negative sinus pressures. It can cause painless facial asymmetry, diplopia and enophthalmos. Usually the diagnosis is suspected clinically, and it can be confirmed radiologically by characteristic imaging features that include maxillary sinus outlet obstruction, sinus opacification, and sinus volume loss caused by inward retraction of the sinus walls. Treatment is surgical involving making an outlet for mucous drainage from the obstructed sinus, and, in some cases, paired with reconstruction of the orbital floor.


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  • Numa WA, Desai U, Gold DR, Heher KL, Annino DJ (2005). "Silent sinus syndrome: a case presentation and comprehensive review of all 84 reported cases". Ann Otol Rhinol Laryngol. 114 (9): 688–94. PMID 16240931.
  • Habicht ME, Eppenberger PE, Galassi FM, Rühli FJ, Henneberg M (2018). "Queen Meresankh III – the oldest case of bilateral Silent Sinus Syndrome (c. 2620/10 - 2570 BC)?". Anthropologie. 56 (2): 103–113. doi:10.26720/anthro.

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