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Bilateral functional endoscopic sinus surgery (FESS) with bilateral middle turbinectomy, uncinatectomy and maxillary antrostomy.
Total opacification of the left frontal and ethmoid sinuses associated with multiple wide focal osseous dehiscences, notably in lamina paprychia/ medial orbital wall with intra-orbital extra-conal extension partially encroaching upon medial rectus and superior oblique muscles. Focal osseous dehiscences also noted at the left cribriform plate and the left lateral lamella as well as along the left anterior ethmoid artery canal. Mild secondary left proptosis.
Right maxillary antrum retention cyst measuring about 1.9 cm.
Few frothy secretions are seen in the left sphenoid sinus.