title: [Atypical frontal sinus mucocele. A case report].
abstract: METHODS
  We report a case of a 46-year-old woman who developed a tender, painful mass in the left superior eyelid over a period of about 6 months. This was a frontal mucocele with atypical clinical and histopathologic features.
  
  
  CONCLUSIONS
  Most mucoceles arise from the frontal or ethmoidal sinuses. Frontal mucoceles usually cause outward and downward displacement of the globe, and are often associated with fullness in the supero-nasal and medial canthal region and a palpable mass.
authors.affiliation: Asociación para Evitar la Ceguera en México, Hospital Dr. Luis Sánchez Bulnes, Servicio de Patología Ocular, Servicio de Oculoplástica. México D.F., México. pculebro@gmail.com
authors.forename: P
authors.initials: P
authors.lastname: Culebro
authors.forename: L
authors.initials: L
authors.lastname: De-Barcia
authors.forename: G
authors.initials: G
authors.lastname: Salcedo
authors.forename: A A
authors.initials: AA
authors.lastname: Rodríguez-Reyes
mesh_terms: D005260:Female; D005626:Frontal Sinus; D006801:Humans; D008875:Middle Aged; D009078:Mucocele / Q000175:diagnosis*; D010254:Paranasal Sinus Diseases / Q000175:diagnosis*