Lack of the HLA-DR2 specificity in multifocal choroiditis and panuveitis.

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Abstract
The prevalence of the HLA-B7 and HLA-DR2 specificities in 17 unrelated patients with multifocal choroiditis and panuveitis, 11 with and six without subretinal neovascularisation, was evaluated and compared with those of two different groups. The first group was 17 patients with subretinal neovascularisation associated with presumed ocular histoplasmosis syndrome, and the second was a group of 105 eye patients with no retinal disease. HLA-DR2 was not found in any patient with multifocal choroiditis and panuveitis, but it was found in 13 patients with presumed ocular histoplasmosis syndrome (p = 6.72 x 10(-5), comparison of the groups with subretinal neovascularisation). The lack of HLA-DR2 was also significant in comparison with the control group of eye patients (p = 0.041). This study suggests that patients with multifocal choroiditis and panuveitis and presumed ocular histoplasmosis syndrome have differing genetic predispositions, though the fundus pictures in these entities have many similarities.

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