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  • Title: Mucocoele and mucopyocoele of the frontal sinus penetrating to the cranial cavity and the orbit.
    Author: Maliszewski M, Ladziński P, Kaspera W, Majchrzak K.
    Journal: Neurol Neurochir Pol; 2011; 45(4):342-50. PubMed ID: 22101995.
    Abstract:
    BACKGROUND AND PURPOSE: Mucocoele of the paranasal sinuses falls within the scope of interest for neurosurgery when erosion of the sinus wall and the osseous structures of the skull base develops and the lesion extends towards the cranial cavity, the orbit, the cavernous sinus or the sella turcica. The pa-per aims to present the method of treatment of extensive mucocoele which is used in our clinic. MATERIAL AND METHODS: We treated 7 patients (2 women and 5 men; age range: 27-68 years). Mucopyocoele was diagnosed in two cases, and mucocoele in the other five. In 5 cases, extension of the mucocoele to the cranial cavity and the orbit or to the ethmoid sinus and the orbit was observed. In the remaining 2 cases, mucopyocoele extended to the ethmoid sinus, the sphenoid and maxillary sinuses, cranial cavity and the orbit. The purpose of surgery was to remove the mucocoele or the mucopyocoele and to prevent recurrence. RESULTS: The postoperative course in all 7 patients was uneventful. All symptoms gradually receded. No relapse was observed in any patient during a follow-up period that varied from 10 months to 8 years; nor did incidents of inflammation of collateral sinuses occur. CONCLUSIONS: The treatment of mucocoele or mucopyocoele of the frontal sinus penetrating to the cranial cavity and the orbit consists of the following stages: cranialization of the frontal sinus, complete resection of the mucosa, tight closing of the frontal-nasal duct, and separating the air space of the opened collateral nasal sinuses from the cranial cavity with a large pedicled periosteal flap.
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