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Year : 2017  |  Volume : 12  |  Issue : 1  |  Page : 30-38

Contribution of dual fluorescein and indocyanine green angiography to the appraisal of presumed tuberculous chorioretinitis in a non-endemic area

Department of Ophthalmology, University of Lausanne; Retinal and Inflammatory Eye Diseases, Centre for Ophthalmic Specialized Care (COS), Teaching Centre Clinic Montchoisi, Lausanne, Switzerland

Correspondence Address:
Carl P Herbort
Retinal and Inflammatory Eye Diseases, Centre for Ophthalmic Specialised Care (COS), Teaching Centre Clinic Montchoisi Rue Charles-Monnard 6, 1003 Lausanne
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2008-322X.200157

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Purpose: To assess the respective involvement of retina versus choroid in presumed ocular tuberculosis (POT) in a non-endemic area using dual fluorescein (FA) and indocyanine green angiography (ICGA). Methods: We retrospectively analyzed cases diagnosed with POT at the Centre for Ophthalmic Specialized Care, Lausanne, Switzerland. Angiography signs were quantified using an established dual FA and ICGA scoring system for uveitis. Results: Out of 1739 uveitis patients visited from 1995 to 2014, 53 (3%) were diagnosed with POT; of whom 28 patients (54 eyes) had sufficient data available to be included in this study. Of 54 affected eyes, 39 showed predominant choroidal involvement, 14 showed predominant retinal involvement and one had equal retinal and choroidal scores. Mean angiographic score was 6.97 ± 5.08 for the retina versus 13.48 ± 7.06 for the choroid (P < 0.0001). For patients with sufficient angiographic follow-up after combined anti-tuberculous and inflammation suppressive therapy, mean FA and ICGA scores decreased from 6.97 ± 5.08 to 3.63 ± 3.14 (P = 0.004), and 13.48 ± 7.06 to 7.47 ± 5.58 (P < 0.0001), respectively. Conclusion: These results represent the first report of the respective contributions of retinal and choroidal involvement in POT. Choroidal involvement was more common, for which ICGA is the preferred examination. In cases of compatible uveitis with positive results of an interferon-gamma release assay, particularly in a region that is non-endemic for TB, dual FA and ICGA should be performed to help establish the diagnosis of ocular tuberculosis and improve follow-up.

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