Sinus Xray Photos Free Royaltyfree Stock Photos From Dreamstime Early problem signs: a sinus on x-ray should appear black,. opacification will appear white or grey. this could be fluid, polyps or inflammation of the the mucosal membr. An x-ray of the sinuses was formerly the standard method of diagnosing acute sinusitis in the sinuses behind the cheeks (maxillary sinuses) or behind the eyebrows (frontal sinuses). because a x ray sinusitis maxillary sinus computed tomography (ct) scan shows a much clearer picture of the sinuses and other structures, the use of standard x-rays has declined. Conservative medical treatment until the inflammation subsides and treatment of the cause, e. g. dental caries. if it becomes chronic sinusitis, functional endoscopic sinus surgerymay be considered. 1. erosion through bone 1. 1. subperiosteal abscess 1. 1. 1. frontal sinus superficially (pott puffy tumor) 1. 1. 2. frontal or ethmoidal sinuses into the orbit (subperiosteal abscess of the orbit) 2. du...