Pneumosinus Dilatans Research Articles

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

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

Pneumosinus dilatans frontal associé à des méningiomes cérébraux multiples

Pneumosinus dilatans is rare. It is defined as an expansion of one of paranasal sinuses. We discuss the etiopathogenic hypothesis of pneumosinus dilatans, its epidemiologic and clinical characteristics, and its therapeutic approaches. Observation A man, 50 years old, presented frontal pneumosinus dilatans associated with multiple cerebral meningiomas, one of which was appended in the nasal cavity revealed by frontal deformation and nasal obstruction. CT and MRI confirmed the diagnosis. The patient was operated in the neurosurgery department, via the bicoronal approach, allowing the removal of meningioma and osteodural repair of the skull base. Discussion Pneumosinus dilatans is a rare pathology with an unknown etiology. It mainly affects the frontal sinus. Its association with cerebral meningioma has been described in the medical literature. Treatment is surgical and is recommended for cases with aesthetic problems.

Pneumosinus Dilatans of the Frontal Sinus

Pneumosinus dilatans is a rare condition of the aerated paranasal sinuses, predominantly affecting the frontal sinus. A review of the literature along with possible etiological mechanisms is presented in this report.

Surgical Navigation Technology for Treatment of Pneumosinus Dilatans

The objective of this study is to present the use of surgical navigation in the selective removal of the anterior table of the frontal sinus in a patient with pneumosinus dilatans. A 16-year-old boy presented with progressive deformity of the forehead and left postauricular sulcus due to pneumosinus dilatans. Reconstruction of the anterior table of the frontal bone was assisted by a surgical navigation system that used data from a preoperative computed tomography scan of the head and neck to map out the boundaries of the frontal sinus. The device enabled selective resection of the anterior table without violation of the cranial cavity.

Pneumosinus dilatans and multiplex: report of three rare cases and review of the literature

Pneumosinus dilatans is a term used to describe a localized abnormal dilatation of one or more paranasal sinuses without radiological evidence of localized bone destruction, hyperostosis or mucous membrane thickening. The involvement of all paranasal sinuses and mastoid air cells has been named pneumosinus dilatans multiplex. Although the involvement of one or more paranasal sinuses has been reported widely, all paranasal sinuses and the concomitant involvement of mastoid air cells has been reported in only one case. Herein, we present three unusual cases of pneumosinus dilatans (one is a second case of pneumosinus dilatans multiplex in English literature, another is the first reported case of a frontal pneumosinus dilatans case associated with frontoethmoidal meningocele, mental retardation and facial asymmetry and the third one is pneumosinus dilatans with a huge arachnoid cyst) along with the review of relevant literature.

Pneumosinus Dilatans

Pneumosinus dilatans refers to an abnormally large aerated sinus; two other characteristic features of this disease are that the bony walls of the sinus are of normal thickness and there is no evidence of erosion. Most cases occur in the frontal sinuses. We describe a new case of pneumosinus dilatans in a 21-year-old woman. She required no treatment.

Pneumosinus dilatans of the ethmoid sinus presenting with exophthalmus: a case report and review of the literature

Pneumosinus dilatans (PSD) is a rare condition of unknown aetiology in which there is enlargement of the paranasal sinuses by air, where the affected sinus expands beyond the normal boundaries of bone without thinning of its bony walls. The case of a 28 year old male with PSD, who had gradually increasing exophthalmus and diplopia, is presented and characteristics of this condition are reviewed with literature data.

Pneumosinus dilatans: metoda leczenia chirurgicznego

Pneumosinus dilatans--progressive hyperpneumatisation is a very rare condition, most often frontal sinuses are involved.One male patient with a pneumosinus dilatans of frontal sinus is presented. The main complaint was moderate pain during motorcycling. Based on the review of the literature and analysis of the new case clinical findings, possible aetiologies and surgical management are discussed.An aesthetic and functional result is stable.1. Etiology of pneumosinus dilatans is still controversial and the low frequency enables systematic studies. 2. Surgical management presented in the article is effective and relatively not complicated.

Spontaneous pneumocephalus caused by the association of pneumosinus dilatans and meningioma

Pneumosinus dilatans (PSD) refers to an abnormally enlarged, air-filled paranasal sinus without radiological evidence of localized bone destruction, hyperostosis, or mucous membrane thickening. This disorder has been associated with meningioma, especially optic nerve sheath meningioma, but its pathophysiology remains unclear. Spontaneous pneumocephalus is an exceptional presentation of PSD and, to our knowledge, has never been associated with meningioma.

Pneumosinus Dilatans Syndrome of the Sphenoid Sinus. A CT Evaluation

This study discusses the CT findings of pneumosinus dilatans of the sphenoid sinus, highlighting the clinically important CT characteristics. The CT findings of 26 patients with overpneumatization of the sphenoid sinus are presented in correlation with the clinical findings. Twenty-two patients had overpneumatization beyond the boundaries of the body of the sphenoid bone with or without bone remodelling but only two patients reported headaches. Thinning of the bone structures was also present in three patients but only one patient reported headaches. Overpneumatization of the sphenoid sinus with thinning of bunywalls reduced the width of the superior orbital fissure in one patient resulting in a gradual decrease of visual acuity. CT is an accurate method for the evaluation of overpneumatization of the sphenoid sinus due to its high sensitivity in depicting evidence of bone erosion using a bone window as imaging settings.

Pneumosinus dilatans: demonstrated by sinus expansion on serial sinus X-rays with discussion of possible aetiology

A case of pneumosinus dilatans of the frontal sinus is presented. The findings on serial skull X-rays, performed on three occasions over a 10-year period, seem to support a developmental aetiology for this rare condition.

Pneumosinus Dilatans Frontalis: A Case Report

Deformity of the forehead is usually the first clinical presentation of the abnormally large frontal sinus caused by pneumosinus dilatans. We report the diagnosis and surgical treatment of a case. The type of osteotomy we describe is recommended as a method of surgical treatment for this condition when the aesthetic problem is the major complaint.

Pneumosinus dilatans frontalis: two case reports

Pneumosinus dilatans was described first in 1898 by Meyes. Up to now only 60 cases have been published worldwide dealing mainly with young men between 20 and 30 years of age. The aetiology remains unknown. Whilst frontal sinuses are affected most often other sinuses can also be involved. The expansion of the pneumosinus is not only an aesthetic problem but may also have functional consequences. There may be a bulging of the roof of the orbit with consequent global displacement, ocular alterations and ptosis. Other features are headache and anosmia. Two male patients with a pneumosinus dilatans of the frontal sinus are presented. They were 22 and 25 years old. The main complaints were aesthetic disfigurement. Treatment consisted of craniofacial repair of the malformation. While one patient was lost to follow-up, the other still is happy and has a stable aesthetic long-term result.

Meningioma with pneumosinus dilatans.

A 67-year-old woman presented with an episode of confusion. A complex partial seizure was suspected. Pneumosinus dilatans (PSD) associated with a cribriform plate meningioma was found on MRI (figure). Histology …

Hysterical Conversion Disorder in a Young Girl at Moderate Altitude

Case report A 10-year-old girl hiked with other members of her group to a summit at a height of 2400 m in Switzerland. They left in the morning from their residence altitude of 600 m, were dropped off with a 4-wheel-drive car at a shelter at 1400 m, and started to hike from this point. During the ascent and after 2 hours of walking, the young girl complained of a headache and a sensation of oppression, but she reached the top together with the rest of the group. The group spent 1 hour having lunch on the summit. After lunch, her headache and her sensation of being unable to take a deep breath were exacerbated, and she became ataxic and unable to stand up; yet she did not lose consciousness. She was carried by several adults and brought down to a shelter at 1400 m after a lapse of 3 hours without improvement of her symptoms. The accompanying adults were in a hurry, and a call for help was sent out. The medical team arrived within 20 minutes by helicopter due to the inaccessibility of the shelter. The helicopter’s physician noticed that the patient was conscious, with no sensory or motor deficiency; the pupils and osteotendinous reflexes were normal. She presented dyskinetic movement of both arms and slight dysarthria, and she spoke in a hushed voice; she was completely unable to stand up (falling backward with exaggerated movements) and also had a tendency to somnolence. Arterial pressure, heart rate, respiratory rate, temperature, and oxygen saturation were all normal, yet her intense headache and her sensation of being unable to get enough air were persistent symptoms. Quite strikingly, she appeared to be completely indifferent and did not ask for any explanations about her clinical condition. She did not report any medical history. At the shelter, oxygen was administered, and an intravenous line was inserted. She was thereafter transported to the

Pneumosinus dilatans of the frontal and ethmoidal sinuses: case report

Enlargement of paranasal sinuses with air is rare with less than 50 cases reported in the medical literature. This craniofacial malformation was first described by Meyes in 1898 and its aetiology still remains unknown. Local pain, ocular alterations, anosmia, headache and cosmetic disturbances are the most common symptoms. We present a case of pneumosinus dilatans diagnosed in a male, 8 years of age. He presented with left fronto-orbital bossing that enlarged slowly until he was 12 years old, at which point its growth appeared to increase dramatically. Computerized tomography revealed an enlargement of the frontal and ethmoidal sinuses, with marked deformation of the anterior wall and of the roof of the left frontal sinus, as well as the roof of the ethmoid and upper sinus medial orbital wall. The sinus walls were of normal thickness. Access was via a bicoronal incision and osteotomy of the deformed fronto-orbital bossing. Reconstruction was undertaken with a periosteal flap and hydroxyapatite bone cement (NorianR) following sinus mucosal stripping and obliteration of the sinus with fat. Six months postoperatively, the patient was without recurrence and had a good cosmetic result. Copyright 2002 European Association for Cranio-Maxillofacial Surgery. Published by Elsevier Science Ltd. All rights reserved.

Pneumosinus Dilatans of the Sphenoid Sinus Presenting With Visual Loss

To report 3 cases of pneumosinus dilatans of the sphenoid sinus associated with visual loss. Retrospective case series describing history of visual loss, visual examination, visual field deficits, and radiologic imaging. Three patients developed visual loss associated with pneumosinus dilatans of the sphenoid sinus. Pneumosinus dilatans of the sphenoid sinus is a rare disorder that should be considered in patients presenting with unexplained visual loss.

Apparent Paradoxical Vault Changes with Middle Cranial Fossa Arachnoid Cysts—Implication for Aetiology

Three cases of middle cranial fossa arachnoid cyst with paradoxical bone changes in the adjacent vault are described, namely, a small middle cranial fossa and pneumosinus dilatans. This association is unusual and unique. The existing literature is reviewed and the probable aetiological factors discussed. Redla, S., Husani, Y. and Colquhoun, I. R. (2001). Clinical Radiology56, 851–855.

Pneumosinus Dilatans: A Report of Three new Cases and Their Surgical Management

Pneumosinus dilatans is a rare pathology that primarily involves the frontal sinus. We report three new cases, with special attention given to the pathophysiology and histologic data. Surgical management is reported.

Neuro-ophthalmological presentation of pneumosinus dilatans

Pneumosinus dilatans (PSD) is a rare disease characterized by an abnormal expansion of an air-filled paranasal sinus. Because of the pressure effect on the adjacent structures, PSD may present with several neurological signs, the ocular ones being the most common. In the present study, we describe a case of frontal PSD with diplopia, proptosis, ophthalmoplegia, and compressive optic neuropathy. Imaging showed a large amount of air in the right orbit continuous with the ipsilateral frontal sinus. Endoscopic sinus surgery was performed to eliminate a valve-like mechanism created by an increased pneumatization of the Agger nasi cell above the ostium frontalis. Surgery was effective in restoring the normal communication between the sinus and the nasal cavity, thus resulting in full recovery of severe visual impairment. The distinction between PSD, pneumocele, and hypersinus is an important one since these disorders share some clinical features, but require different treatments. PSD visual prognosis is mainly related to its associated syndromes and their surgical treatment. If PSD occurs as an idiopathic disorder with simple sinus expansion, visual prognosis is good when appropriate surgery is performed. At present, endoscopic sinus surgery is preferable to the external approach for treatment of PSD.