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  • Title: Familial exudative vitreoretinopathy and DiGeorge syndrome: a new locus for familial exudative vitreoretinopathy on chromosome 22q11.2?
    Author: Gilmour DF, Downey LM, Sheridan E, Long V, Bradbury J, Inglehearn CF, Toomes C.
    Journal: Ophthalmology; 2009 Aug; 116(8):1522-4. PubMed ID: 19501404.
    Abstract:
    PURPOSE: To describe a patient with DiGeorge syndrome in association with familial exudative vitreoretinopathy (FEVR). DESIGN: Observational case report. PARTICIPANTS: A newborn female and her parents. METHODS: Family members were examined by slit-lamp biomicroscopy and indirect ophthalmoscopy. Deletion mapping was performed by fluorescent in situ hybridization and genotyping. Mutation screening was undertaken by direct sequencing. MAIN OUTCOME MEASURES: The presence or absence of a microdeletion on chromosome 22q11.2 in the patient and her parents and mutation screening of FZD4 and LRP5 in the patient. RESULTS: The patient had classical features of DiGeorge syndrome and FEVR. A de novo microdeletion on chromosome 22q11.2 was found in the patient, confirming the diagnosis of DiGeorge syndrome. No mutations were identified in the known FEVR genes. CONCLUSIONS: Patients with DiGeorge syndrome should have a dilated retinal examination to look for signs of FEVR. Chromosome 22q11.2 may represent a novel locus for FEVR.
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