Figure 4 shows a radiological image of left maxillary mucocele in an adult patient with nasal blockage and foul smelling discharge. [intechopen.com]

Cysts that put pressure on the mucosal lining of sinuses cause symptoms such as headache and periorbital or facial pain, and those that obstruct the ostium may cause paranasal sinus infection, nasal obstruction, postnasal drip, and nasal discharge, which [alliedacademies.org]

The patient may complain about nasal obstruction, nasal voice, proptosis, diplopia and headache. The affected frontal sinus will appear as a cloud with rounded, ovoid or smooth contours on the radiograph. [nasodren.com]

He did not have any other symptom or sign such as runny nose, sneezing, epistaxis, facial swelling, loss of appetite or weight, diplopia, or decrease in visual acuity. [thritajournal.com]

Fronto-ethmoidal mucocoele as a cause of unilateral proptosis. Br J Ophthalmol. 1968; 52 (11): 833-8[ PubMed ] 5 Kuran G, Vuralkan E, Saka C, Akin I. Endoscopic sinus surgery of frontal mucocele. [thritajournal.com]

When used by surgeons familiar with endoscopic sinus surgery this has proved a safe and successful procedure that avoids facial scarring. [ncbi.nlm.nih.gov]

If a wide marsupialization can be achieved by an entirely endoscopic approach there are a number of advantages, notably a lack of facial scarring in children and young adults. [scienceopen.com]

Pressure effects on the cranial nerves can result in sudden focal neurological deficits such as blindness if the cavernous part of the carotid sinus is involved laterally. [ejo.eg.net]

These include diminished sinus volume with retraction and inward bowing of the maxillary sinus walls, downward bowing and thinning of the orbital floor and increased orbital volume, near-to-complete sinus opacification, lateral retraction of the uncinate [appliedradiology.com]

A case of mucocele of the sphenoid sinus causing sudden onset of blindness and hyperprolactinemia. Korean J Otolaryngol 1989;39:730–733. 20. Cho SH, Cho KK, Lee KS, et al. A case of sphenoid sinus mucocele with visual field defect. [synapse.koreamed.org]

Infections by dematiaceous fungi such as Bipolaris, Curvularia or Alternaria are commonly seen in patients with allergic fungal sinusitis. [intechopen.com]