Silent Sinus Syndrome: A Paediatric Condition Diagnosed in the Orthodontic Department

Silent sinus syndrome (SSS) is defined as unilateral maxillary sinus hypoplasia and orbital floor resorption. This case report highlights a rare paediatric diagnosis of SSS during an orthodontic clinic. The diagnostic orthopantogram (OPG) and cone-beam computed tomography showed complete opacification of the left maxillary sinus. Following referral to the ear, nose and throat (ENT) department, a CT sinus confirmed SSS. Owing to the risk of facial asymmetry in a growing adolescent patient without surgical intervention, functional endoscopic sinus surgery will be used to manage this. This case highlights the importance of a thorough investigation of incidental findings. CPD/Clinical Relevance: The clinical relevance of early diagnosis of silent sinus syndrome and its implications on facial symmetry is discussed.