Presentation and diagnosis of unilateral maxillary swelling in children.

Facial asymmetry secondary to pathologic processes involving the maxillary sinus and its surrounding structures presents a challenge for the clinician. An organized approach to evaluate these patients is essential in order to differentiate inflammatory sinus pathology from disease processes primarily involving the surrounding maxilla, parotid gland, orbital contents, and dental structures. In addition to a thorough history and physical examination, appropriate imaging studies must be obtained to localize the pathologic processes and develop a meaningful differential diagnosis. Once this is accomplished, specific treatment modalities can be developed. Representative cases will be presented to illustrate this organized approach to unilateral maxillary swelling, including soft tissue and osseous masses, fibro-osseous lesions, osseous cysts and inflammatory lesions.