Fig. 22. Disciform macular detachment secondary to multifocal choroiditis, presumed to be histoplasmic choroiditis. A. Granulomatous inflammation involving the choroid primarily but breaking through Bruch's membrane-to involve the retina. B. Typical yeast forms of Histoplasmosa capsulatum are evident in the specially stained preparation. Free-lying retinal pigment epithelial melanin granules are also shown. (A, H&E, × 100; B, Grocott's methenamine silver, × 1000) |