title: Marginal zone B-cell orbital lymphoma with intracranial involvement.
abstract: A 40-year-old woman presented to the eye clinic with painless swelling of her right lower eyelid of 2 years' duration. Examination revealed severe loss of vision in the right eye with hypoglobus and exotropia. CT showed a diffuse right orbital infiltrative lesion with extension to the brain parenchyma. Histopathology confirmed the diagnosis of orbital marginal zone B-cell lymphoma, which is an indolent type of lymphoma that can be associated with systemic lymphoma, but the intracranial association has not been previously described.
authors.affiliation: Department of Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery, National University Health System, Singapore.
authors.forename: Radwan
authors.initials: R
authors.lastname: Almousa
authors.forename: Min-En
authors.initials: ME
authors.lastname: Nga
authors.forename: Gangadhara
authors.initials: G
authors.lastname: Sundar
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging / Q000473:pathology*; D009361:Neoplasm Invasiveness; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed