[Experience in the differential diagnosis of peripapillary "geographic" choroid disease and tuberculous chorioretinitis].

The etiology of peripapillary choriopathy (so-called geographic serpiginous choroiditis) is still unknown. This condition should be differentiated from tuberculous chorioretinitis because both abnormalities are characterized by a prolonged chronic course with involvement of the choroid and retina in young and middle-aged patients. The present study analyzes the results of a follow-up of 32 patients with peripapillary choriopathy; before these patients were admitted to hospital, ocular tuberculosis was diagnosed in 19 and suspected in 13 of them by local specialists. The authors came to a conclusion that the major differential diagnostic criteria here should be specific features of the ophthalmoscopic picture and of fluorescent angiograms of the fundus oculi, as well as the results of tuberculin diagnosis and tentative therapy.