Presumed toxoplasmic retinochoroiditis in four siblings.

Four siblings in an East Indian family showed typical ophthalmoscopic findings of toxoplasmic retinochoroiditis. Serologic data confirmed exposure to Toxoplasma gondii and the results of other tests excluded other etiologic agents. Three siblings had documented episodes of ocular inflammation consistent with recurrent toxoplasmic retinochoroiditis. The fourth sibling developed a de novo lesion following an illness consistent with systemic toxoplasmosis.