title: Frosted Branch Angiitis in a Patient with Typhoid Fever.
abstract: Frosted branch angiitis (FBA), a rare form of retinal vasculitis presenting as bilateral perivascular sheathing, resembling the appearance of frosted tree branches in winter, was first reported by Ito et al.1in 1976, in a young immunocompetent boy. FBA predominantly affects healthy young patients, the youngest reported in an 11-month-old infant2and oldest in a 42-year-old patient.3Classical symptoms include sudden onset of blurred vision with floaters and photopsiae. Fundus examination shows widespread perivascular translucent sheathing affecting both arterioles and venules, more commonly latter. Fluorescein angiography shows late staining of vessels with no obstruction of blood flow. Electroretinogram shows reduced amplitude and visual fields show generalized constriction. Medline search did not show any case of frosted branch angiitis in a patient with typhoid fever.
authors.affiliation: a Uveitis Services , Medical Research Foundation , Chennai , India.
authors.forename: Mamta
authors.initials: M
authors.lastname: Agarwal
authors.affiliation: b Vision Research Foundation, Larsen & Toubro Microbiology Research Centre , Chennai , India.
authors.forename: Jambulingam
authors.initials: J
authors.lastname: Malathi
authors.affiliation: c Uvea and Ocular Pathology, Medical and Vision Research Foundations , Chennai , India.
authors.forename: Jyotirmay
authors.initials: J
authors.lastname: Biswas
mesh_terms: D000293:Adolescent; D005260:Female; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D031300:Retinal Vasculitis / Q000175:diagnosis / Q000209:etiology*; D012171:Retinal Vessels / Q000000981:diagnostic imaging*; D000072776:Slit Lamp Microscopy; D041623:Tomography, Optical Coherence; D014435:Typhoid Fever / Q000150:complications*; D014792:Visual Acuity