title: Ethmoid mucocele presenting as an orbital mass.
abstract: This is a case of an 11-year-old male with an ethmoid sinus mucocele who presented to our emergency department with an orbital mass. This mucocele was most likely related to an ipsilateral orbital subperiosteal abscess that required endoscopic drainage 9 years ago. Mucoceles are mucus-filled, epithelial-lined sacs that slowly develop in the paranasal sinuses when sinus drainage is obstructed by inflammatory processes, trauma, or prior surgery. They are rare in children and should be suspected in patients with progressive headache or orbital complaints.
authors.affiliation: Department of Pediatrics, Division of Emergency Medicine, Alfred I duPont Hospital for Children, Wilmington, DE 19899, USA. mcdiaz@nemours.org
authors.forename: Maria Carmen G
authors.initials: MC
authors.lastname: Diaz
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Schmidt
mesh_terms: D000038:Abscess / Q000601:surgery; D002648:Child; D003937:Diagnosis, Differential; D004724:Endoscopy; D005005:Ethmoid Sinus / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D009078:Mucocele / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D009296:Nasal Cavity / Q000473:pathology; D009916:Orbital Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D010254:Paranasal Sinus Diseases / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology; D012852:Sinusitis / Q000601:surgery; D013997:Time Factors; D014057:Tomography, X-Ray Computed