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Optical coherence tomography in choroidal tuberculosis
Amjad Salman1, Pragya Parmar, Meenakshisundaram Rajamohan
1Institute of Ophthalmology, Joseph Eye Hospital, Tiruchirapalli, India. amjad26@sify.com
Purpose:
To report the optical coherence tomographic (OCT) features in eyes with tuberculous choroidal granuloma.
Design:
Interventional case series.
Methods:
Nine eyes of nine patients with tuberculous granuloma of the choroid were studied using OCT scans.
Results:
OCT scan through the lesions revealed a distinctive feature of attachment between the retinal pigment epithelial- choriocapillaris layer and the neurosensory retina over the granuloma ("contact" sign). This was associated with surrounding subretinal fluid and inflammatory infiltrate in the deeper retinal layers.
Conclusions:
OCT can be useful in the differentiating choroidal tuberculous granulomas from noninflammatory lesions with a similar clinical appearance.
