Obstruction Of Sinus Ostium Research Articles

Mucocele of the Paranasal Sinuses: Retrospective Analysis of a Series of Eight Cases.

Paranasal sinus mucoceles are epithelium-lined cystic masses usually resulting from obstruction of sinus ostia. They most frequently occur in the frontal and ethmoid sinuses. The etiology is not clarified, but the most common identifiable cause of mucoceles following functional endoscopic sinus surgery (FESS), trauma, neoplasms, and allergy. The clinical symptoms of mucocele vary and are not specific, the most common being ophthalmic symptoms and headache, impinging on adjacent orbital structures, and causing ophthalmic sequelae such as double vision, commonly followed by orbital swelling, epiphora, proptosis, and ptosis. All patients in this study had frontal and frontoethmoidal mucocele and initially complained of frontal headache and ophthalmic symptoms. Definitive treatment options for paranasal sinus mucoceles include external approaches and endoscopic marsupialization. Objective:The study aimed to identify the etiology, clinical presentation, most common para nasal sinus affected by mucocele, management, and the rate of recurrence in eight cases with mucocele of the paranasal sinuses. Eight patients diagnosed with mucocele of the paranasal sinuses were admitted to our institution between 2014 and 2021. There were two females and six males aged between 14 and 67. Initial symptoms, duration, clinical presentation upon admission, location of the mucocele, type of surgical intervention, and outcome have all been studied. Results: The most common symptoms at diagnosis were orbital involvement, retrobulbar, and frontal headache. Most patients were diagnosed with frontal mucocele (40%), and three were frontoethmoidal mucocele at the time of presentation. The rest of the cases were diagnosed with ethmoidal mucocele (25%). The etiology was identified in four patients and was unclear in the rest. All patients underwent endoscopic sinus surgery. The most identifiable postoperative complication was a headache. The endonasal endoscopic approach is a safe and effective treatment for paranasal sinus mucocele and provides adequate drainage with a low recurrent rate.

Idiopathic antral exostoses: Two rare cases in maxillary sinus

During routine panoramic radiographic examinations, a series of incidental findings may be observed in maxillary sinuses. One of these findings may be exostoses which are the outgrowths of compact and cancellous bone. In this case report, we represent two cases of exostosis of the maxillary sinus evaluated using cone-beam computed tomography. Although antral exostoses have no clinical importance, except if they cause obstruction of sinus ostium, their differential diagnosis must be achieved from other pathologies with similar radiographic properties such as anthroliths and osteomas.

Mucous retention cyst of the maxillary sinus-minimally invasive treatment with use of piezosurgery. Case report

Paranasal sinus mucoceles are chronic, benign, mucous filled cystic lesions caused by obstruction of sinus ostia. Mucoceles are usually seen in the frontoethmoidal region. Maxillary sinus retention cysts are rare amongst paranasal sinus mucoceles. We present one such case of a 63-year-old woman, whose maxillary sinus mucocele revealed during radiological examination, was treated with the use of piezosurgery. In this article we also present the beneficial aspects of the ultrasound unit, that allows for precise removal of bone with minimal risk of injury to underlying soft tissues. It allows more successful and more complication-free surgical result for a less experienced surgeon that could be especially beneficial for preparation of the Schneider’s membrane. Furthermore, it gives minimal operative invasion as well as provides less bleeding intra- and postoperative.

Paranasal Sinus Mucocele

Paranasal sinus mucoceles are epithelium-lined cystic masses usually resulting from obstruction of sinus ostia. They most frequently occur in the frontal and ethmoid sinuses. While ophthalmologic symptoms are most common, patients also report rhinological or neurological complaints. The close proximity of paranasal sinus mucoceles to the orbit and skull base predisposes the patient to significant morbidity. Computed tomography displays a non-enhancing homogenous mass with expansion of bony walls. Magnetic resonance imaging reveals variable intensity of T1-weighted images and a hyperintense mass on T2-weighted images. Histopathologically mucoceles have features of respiratory mucosa with areas of reactive bone formation, hemorrhage, fibrosis, and granulation tissue. Surgical excision is the standard treatment with trends towards endoscopic techniques.

Frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele: case report

BackgroundMucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common.Case presentationA case of a frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele is reported. A 77 year old female patient suffering from left sided proptosis and pain around the left eye was admitted to our department. She had a history of left frontal sinus mucocele one year ago that was offered an osteoplastic frontal sinus surgery that the patient refused. Patient had limitation of eye movements. Fundoscopic examination revealed a minimal papilledema. Coronal computerized tomography and orbital magnetic resonance imaging showed a frontal mucocele with suspicious erosion of the orbital roof and a superiorly localized extraconal mass displacing the orbit lateroinferiorly. Frontal and orbital masses had similar intensities. Thus surgery was planned for a fronto-orbital mucocele. During surgery no defect was found on the orbital roof. Frontal mucocele and orbital cystic mass was removed separately. Pathological examination showed a frontal mucocele and an orbital abscess wall. Postoperatively eye movements returned to normal and papilledema resolved.ConclusionFronto-orbital mucoceles are commonly encountered pathologies, but frontal mucocele with an orbital abscess is a rarely seen and should be kept in mind because their treatments differ.