title: Lacrimal sac lymphoproliferative lesion: case report.
abstract: METHODS
  The case is presented of a 51 year-old woman with a firm mass at the medial canthus of the right eye of five years onset. A low-grade lymphoproliferative lesion (reactive lymphoid hyperplasia) was diagnosed from an excisional biopsy
  
  
  CONCLUSIONS
  Lacrimal sac tumors are rare, with a peak incidence in the fifth decade of life. The initial clinical features are epiphora and medial canthus swelling. As it mimics nasolacrimal duct obstruction, up to 40% of these tumors are misdiagnosed until undergoing surgery.
authors.affiliation: Servicio de Párpados, Órbita y Vía Lagrimal, Asociación para evitar la Ceguera IAP, Hospital Dr. Luis Sánchez Bulnes, México DF, México. Electronic address: icg_ct@yahoo.es.
authors.forename: I
authors.initials: I
authors.lastname: Coloma-González
authors.affiliation: Servicio de Párpados, Órbita y Vía Lagrimal, Asociación para evitar la Ceguera IAP, Hospital Dr. Luis Sánchez Bulnes, México DF, México.
authors.forename: L
authors.initials: L
authors.lastname: Ruíz-García
authors.affiliation: Servicio de Párpados, Órbita y Vía Lagrimal, Asociación para evitar la Ceguera IAP, Hospital Dr. Luis Sánchez Bulnes, México DF, México.
authors.forename: A
authors.initials: A
authors.lastname: Ceriotto
authors.affiliation: Servicio de Párpados, Órbita y Vía Lagrimal, Asociación para evitar la Ceguera IAP, Hospital Dr. Luis Sánchez Bulnes, México DF, México.
authors.forename: S
authors.initials: S
authors.lastname: Corredor-Casas
authors.affiliation: Servicio de Párpados, Órbita y Vía Lagrimal, Asociación para evitar la Ceguera IAP, Hospital Dr. Luis Sánchez Bulnes, México DF, México.
authors.forename: G
authors.initials: G
authors.lastname: Salcedo-Casillas
mesh_terms: D001706:Biopsy; D002114:Calcinosis / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009915:Orbit / Q000000981:diagnostic imaging; D019310:Pseudolymphoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed
keywords: Epiphora; Epífora; Lacrimal obstruction; Lacrimal system malignant tumor; Lesión linfoproliferativa; Linfoma; Lymphoma; Lymphoproliferative lesion; Obstrucción vía lagrimal; Tumor maligno vía lagrimal