Asymptomatic Enophthalmos: The Silent Sinus Syndrome

Gillman, Grant S.; Schaitkin, Barry M.; May, Mark

doi:10.2500/105065899781329629

Cited by 48 publications

(35 citation statements)

References 15 publications

(3 reference statements)

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“…Narrow infundibulum and atelectiatic opacified right maxillary sinus are also seen. obstruction results in reduced aeration of the antrum, causing negative sinus pressure and atelectasis [1,3]. Supporting this hypothesis, in our case there is uncinate process being opposed to the inferomedial orbital rim [white arrow in coronal Fig-1] occluding the ostia of right ostiomeatal complex.…”

Section: Discussionsupporting

confidence: 69%

Silent Sinus Syndrome- A Blowout Fracture Mimic

Chavadi¹,

Kory²,

Mahale³

et al. 2014

JCR

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Abstract:The silent sinus syndrome, also known as imploding antrum and chronic maxillary sinus atelectasis, consists of painless enophthalmos, facial asymmetry with inward retraction of the ipsilateral maxillary sinus walls as seen on imaging studies. It is a well-recognized entity in the field of otolaryngology, but the syndrome remains relatively unknown among radiologists despite its characteristic radiological features. The chronic maxillary sinus atelectasis presenting to the Emergency Room with facial trauma, this entity may, to the radiologist unaware of its existence, be misdiagnosed as an orbital floor blowout fracture, especially when the trauma is ipsilateral. Features that distinguish it from the blow-out fracture are the associated deformities of the other maxillary walls, total opacification of the sinus (as opposed to an air-fluid level), and osteolysis of the sinus walls (if present). It can be definitively treated by creating an outlet for mucous drainage from the obstructed sinus, the goal of treatment being to arrest disease progression without development of further deformity. The purpose of this article is to acquaint the reader with the clinical and imaging features of the silent sinus syndrome.

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Section: Discussionsupporting

confidence: 69%

Silent Sinus Syndrome- A Blowout Fracture Mimic

Chavadi¹,

Kory²,

Mahale³

et al. 2014

JCR

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show abstract

“…The silent sinus syndrome is thinning of the bony floor of the orbit, with resultant enophthalmos in otherwise asymptomatic maxillary sinus disease [3,4]. These cases are frequently associated with maxillary sinus hypoplasia, but normal sinuses demonstrated by normal sinus CT scans have been reported in patients years before development of enophthalmos [5].…”

Section: Silent Sinus Syndromementioning

confidence: 99%

The Otolaryngologist–Ophthalmologist Relationship: An Historic Perspective

Thawley

2006

Otolaryngologic Clinics of North America

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“…Several authors, however, have suggested that chronic negative pressure within the maxillary sinus resulting from sinus ostial obstruction is the cause [2][3][4][5][6][7][8][9]. Subsequent regional bony remodeling is then felt to result in enophthalmos.…”

Section: Pathophysiologymentioning

confidence: 98%