The presentation is typically with painless and usually relatively long-standing (months to years) facial asymmetry, enophthalmos of 2-5 mm, and hypoglobus 1-3. Symptoms of sinusitis are not always present 1. [radiopaedia.org]

There is no gender or racial predilection, and patients tend to present during the third to fifth decade of life. [aao.org]

The key features in a patient who presents with SSS are painless progressive unilateral maxillary sinus disease in the absence of rhinosinusitis, trauma, or surgery. [pubmed.ncbi.nlm.nih.gov]

Puterman Medicine The Israel Medical Association journal : IMAJ 2005 Patients with silent sinus syndrome typically present for investigation of facial asymmetry, and ophthalmologists, otorhinolaryngologists, and radiologists must be familiarized with [semanticscholar.org]

Description A 35-year-old male patient presented to our clinic complaining of a 2-week history of progressive left cheek depression causing visible asymmetry of the face and the sensation of his left eye ‘sinking in’ for the previous 5 days. [casereports.bmj.com]

• Pain

  Signs and symptoms[edit] Silent sinus syndrome can cause facial asymmetry (usually without pain), and vision problems (such as diplopia and enophthalmos). [en.wikipedia.org]

• Asymptomatic

  […] problems, headache Diagnostic method symptoms, CT scan Differential diagnosis sinus atelectasis, congenital sinus hypoplasia Treatment surgery (endoscopic endonasal surgery) Frequency rare, most common in middle age Silent sinus syndrome is a spontaneous, asymptomatic [en.wikipedia.org]

• Fracture

  Spontaneous Enophthalmos The most common cause of enophthalmos is traumatic expansion of the orbital cavity secondary to a blowout fracture of the orbital floor and/or medial wall. [aao.org]

• Enophthalmos

  Spontaneous Enophthalmos The most common cause of enophthalmos is traumatic expansion of the orbital cavity secondary to a blowout fracture of the orbital floor and/or medial wall. [aao.org]

  Orbital volume increases with resultant enophthalmos and variable flattening of the malar eminence 1. [radiopaedia.org]

  PMID: 22051178 Silent sinus syndrome presenting as enophthalmos long after orbital trauma. Montezuma SR, Gopal H, Savar A, Turalba A, Cestari DM, Torun N. Montezuma SR, et al. [pubmed.ncbi.nlm.nih.gov]

  It can cause painless facial asymmetry, diplopia and enophthalmos. Diagnosis is suspected based on symptoms, and can be confirmed using a CT scan. [en.wikipedia.org]

• Diplopia

  Abstract Background: The silent sinus syndrome (SSS) is a rare cause of diplopia and facial asymmetry. It is commonly attributed to a sinus atelectasis secondary to ostiomeatal obstruction. [pubmed.ncbi.nlm.nih.gov]

  However, any deformity at the time of surgery will be permanent and may require surgical correction, especially if diplopia is present. The differential is usually small. [radiopaedia.org]

  Clinical case A 45 year-old female patient was referred for vertical diplopia with enophthalmia, and a slight depression of the left cheekbone. Antrostomy was performed for chronic obstructive… Expand [semanticscholar.org]

  It is a very uncommon pathology.1 ,2 Physical examination findings may include upper lid retraction, deepened upper lid sulcus, malar depression, facial asymmetry and maybe diplopia.1 ,2 The diagnosis of SSS is confirmed by CT of nose and paranasal sinuses [casereports.bmj.com]

  It can cause painless facial asymmetry, diplopia and enophthalmos. Diagnosis is suspected based on symptoms, and can be confirmed using a CT scan. [en.wikipedia.org]

• Prolapse

  […] perform the two stages simultaneously,[13][14][15] most authorities recommend waiting a minimum of 6 or as many as 18 months, as spontaneous remodeling of the orbital floor after the sinus repair will occur in many if not most cases.[4][16][17][18] Any prolapsed [en.wikipedia.org]

• Atelectasis

  "Repetitive Sinus-Related Symptoms May Accelerate the Progression of Chronic Maxillary Atelectasis". Case Reports in Otolaryngology. 2017: 1–5. doi:10.1155/2017/4296195. PMC 5512096. [en.wikipedia.org]

  SSS is an acquired spontaneous unilateral maxillary atelectasis with complete or partial opacification of the sinus associated with spontaneous, painless enophtalmos and progressive hypoglobus. [casereports.bmj.com]

  It is commonly attributed to a sinus atelectasis secondary to ostiomeatal obstruction. Surgical dissection of the maxillary sinus mucosal lining is known to cause auto-obliteration by bone formation. [pubmed.ncbi.nlm.nih.gov]

  Some authors suggest that is part of the spectrum of chronic maxillary atelectasis 6. Silent sinus syndrome usually presents in the 3rd to 5th decade, without a gender predilection. In general, the condition is idiopathic. [radiopaedia.org]

  It is secondary to chronic sinus atelectasis. The diagnosis is suggested by clinical findings and confirmed on the basis of computed tomography and magnetic resonance imaging. [otorrino.org.mx]

• Sinus Opacification

  […] partial opacification of the sinus associated with enophtalmos and hypoglobus. [casereports.bmj.com]

  This can have characteristic features, including maxillary sinus outlet obstruction, sinus opacification, and sinus volume loss caused by inward retraction of the sinus walls.[1] Differential diagnosis[edit] Silent sinus syndrome is a subtype of stage [en.wikipedia.org]

"Endoscopic Treatment of Silent Sinus Syndrome with Dramatic Resolution". The Laryngoscope. 121: S230. doi:10.1002/lary.22116. S2CID 71631041. ^ Hunt, Scott M; Tami, Thomas A (August 2000). [en.wikipedia.org]

Treatment and prognosis The condition is benign but may result in diplopia. Treatment involves the creation of a drainage route for the sinus. This can be with a nasal antral window or maxillary antrostomy. [radiopaedia.org]

The restitution treatment of the silent sinus syndrome involves functional endoscopic surgery and on a few patients reconstruction of the floor of the orbit. One case of this rare entity is fully discussed. Key words: silent sinus, orbital floor. [otorrino.org.mx]

Treatment The definitive treatment for silent sinus syndrome is surgical, and otolaryngological consultation may be necessary. The blockage of the ostiomeatal complex (Fig. 2B) must be relieved by functional endoscopic sinus surgery. [aao.org]

The treatment consists in restoring sinus ventilation and, if necessary, correcting the orbital floor. [keyopinionleaders.com]

Treatment and prognosis The condition is benign but may result in diplopia. Treatment involves the creation of a drainage route for the sinus. This can be with a nasal antral window or maxillary antrostomy. [radiopaedia.org]

Currently, there is only one reported case of silent sinus syndrome occurring in a pregnant patient.3 Although pregnancy-related rhinitis and maxillary sinusitis are known to occur, our patient had no signs or symptoms suggesting this etiology. [aao.org]

"Etiology, Early Diagnosis and Proper Treatment of Silent Sinus Syndrome Based on Review of the Literature and Own Experience". Journal of Oral and Maxillofacial Surgery. 80 (1): 113.e1–113.e8. doi:10.1016/j.joms.2021.08.166. ISSN 0278-2391. [en.wikipedia.org]

Epidemiology[edit] Silent sinus syndrome is fairly rare.[1][2] It can occur at any age, but is slightly more common in middle-aged people. [en.wikipedia.org]

Pathophysiology Optimal management of silent sinus syndrome requires an understanding of the underlying pathophysiology. [aao.org]

When there is a tumor, injury, or some type of defect at the skull base whether the surgeon used an endoscopic or open surgical method, the problem still arises of providing separation of the cranial cavity and cavity between the sinuses and nose to prevent [en.wikipedia.org]