title: Giant cell tumor of the ethmoid sinus: an unusual cause of proptosis in a child.
mesh_terms: D000293:Adolescent; D005005:Ethmoid Sinus; D005094:Exophthalmos / Q000209:etiology*; D005260:Female; D005870:Giant Cell Tumors / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D010255:Paranasal Sinus Neoplasms / Q000150:complications* / Q000175:diagnosis