Pneumosinus Dilatans: A Rare Cause of Frontal Sinus Expansion—Case Report and Review of Literature

Patel, Anita C.; Hammoudeh, Jeffrey A.; Urata, Mark M.

doi:10.1016/j.joms.2008.06.075

Cited by 28 publications

(12 citation statements)

References 18 publications

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“…Postulated causes of pneumocele include iatrogenic, developmental (arachnoid cyst), inflammatory, neoplastic (optic nerve sheath meningioma, fibro-osseous disease), and traumatic, leading to obliteration of the sinus and subsequent hyperinflation. 8 , 9 Wolfensberger and Herrmann were the first to document the trap valve hypothesis in a patient with a maxillary sinus pneumocele. 10 The theory is that redundant mucosa or a stricture may create a one-way valve between the nasal cavity and the affected sinus, and produce chronic air trapping, intrasinus pressure disequilibrium, and hyperpneumatization of the affected sinus.…”

Section: Discussionmentioning

confidence: 99%

Ethmoid Pneumocele Presenting with Exophthalmos 15 Years after Endoscopic Sinus Surgery

Song

Ahn

Reh

et al. 2015

Allergy�Rhinol (Providence)

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Section: Discussionmentioning

confidence: 99%

Ethmoid Pneumocele Presenting with Exophthalmos 15 Years after Endoscopic Sinus Surgery

Song

Ahn

Reh

et al. 2015

Allergy�Rhinol (Providence)

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“…They have been described as primary or secondary. The proposed aetiologies of primary cases include a one-way valve effect,8 gas-forming organisms,10 spontaneously discharged mucocele,11 trauma12 and dysregulation of hormones. However, there is no report of any hormonal alteration so far.…”

Section: Discussionmentioning

confidence: 99%

Pneumosinus dilatans multiplex associated with hormonal imbalance

et al. 2013

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Pneumosinus dilatans describes an abnormal dilation of one or more paranasal sinuses without radiological evidence of localised bone destruction, hyperostosis or mucous membrane thickening. Dilation of mastoid air cells also occurs rarely along with involvement of paranasal sinuses. This rare combination of unknown aetiology was reported in two cases in the literature and termed ‘Pneumosinus Dilatans Multiplex’ (PSDM). It is usually asymptomatic, and is detected incidentally on plain radiography, CT or MRI. If left untreated, it can further erode the bone leading to complications such as facial asymmetry, neurological disorders and pathological fractures. The aetiology of the condition remains obscure. Various hypotheses proposed are the presence of gas-forming microorganisms, spontaneous drainage of a mucocele, the presence of a one-way valve, dysregulation of hormonal levels leading to a disturbance of osteoblastic and osteoclastic activity. This paper describes a case of PSDM possibly secondary to hormonal disturbance.

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“…This is not always the case in other similar cases of sinus expansion. Complications of pneumosinus include cosmetic deformities due to the bossing of the facial bones [11], recurrent sinusitis due to obstruction of the paranasal sinus outflow tract [6], and proptosis, diplopia, or progressive blindness due to expansion towards the orbit [12]. We believe that in similar rare cases of abnormal sinus or mastoid air cells expansion, the treatment should be individualized and address the patients cardinal symptoms.…”

Section: Discussionmentioning

confidence: 99%

“…We believe that in similar rare cases of abnormal sinus or mastoid air cells expansion, the treatment should be individualized and address the patients cardinal symptoms. An algorithm on surgical management of pneumosinus dilatans of the frontal sinus has been described by Patel et al [11] but can be generalized for all aerated cavities. If the main symptoms are caused by obstruction of the sinuses ostia, Functional Endoscopic Sinus Surgery (FESS) may restore normal drainage.…”

Section: Discussionmentioning

confidence: 99%

Excessive Paranasal Sinuses and Mastoid Aeration as a Possible Cause of Chronic Headache

Kousoulis

Hajiioannou

Florou

et al. 2013

Case Reports in Otolaryngology

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The objective of this case report is to present a patient with chronic headache who was diagnosed with excessive aeration of all paranasal sinuses and mastoid air cells using computed tomography imaging. The volume and linear measurements of all of the cavities revealed values greater than the greatest values reported in the literature. To date, this is the second reported case of excessive enlargement of all paranasal sinuses and the first which includes the enlargement of the mastoid air cells. No surgical intervention was required for the patient, but in similar cases, with more severe symptoms, surgical treatment is a challenge for the surgeon and may mandate a multidisciplinary approach.

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Pneumosinus Dilatans: A Rare Cause of Frontal Sinus Expansion—Case Report and Review of Literature

Cited by 28 publications

References 18 publications

Ethmoid Pneumocele Presenting with Exophthalmos 15 Years after Endoscopic Sinus Surgery

Ethmoid Pneumocele Presenting with Exophthalmos 15 Years after Endoscopic Sinus Surgery

Pneumosinus dilatans multiplex associated with hormonal imbalance

Excessive Paranasal Sinuses and Mastoid Aeration as a Possible Cause of Chronic Headache

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