Abstract ORGANISMS morphologically indistinguishable from Toxoplasma have been found in chorioretinal lesions in 53 eyes in the Registry of Ophthalmic Pathology. Included in this group are 41 eyes mentioned in a preliminary report.1 The patients were from 14 to 83 years of age at the time of enucleation, and, although eye symptoms had been observed for from a few weeks to 32 years, the earliest history of onset was at 12 years, in one instance. On the other hand, six patients had a history of onset in the seventh decade of life, and two, in the eighth. Thirty-seven patients were male; 15 were female, and the sex of one patient was unknown. The preponderance of males may be accounted for by the military source of much of the material examined. Forty-nine of the patients were white; 3 were Negroes, and 1 was a Filipino. The geographic distribution was wide. Specimens References 1. Wilder, H. C.: Toxoplasma Chorioretinitis in Adults , A. M. A. Arch. Ophth. 47:425, 1952.Crossref 2. Sabin, A. B., and Feldman, H. A.: Dyes as Microchemical Indicators of a New Immunity Phenomenon Affecting a Protozoon Parasite (Toxoplasma) , Science 108:660-663, 1948.Crossref 3. Cross, J. B.: A Cytologic Study of Toxoplasma with Special Reference to Its Effect on the Host's Cell , J. Infect. Dis. 80:278-296, 1947.Crossref 4. Perrin, T. L.: Toxoplasma and Encephalitozoon in Spontaneous and in Experimental Infections in Animals , Arch. Path. 36:568-578, 1943. 5. Frenkel, J. K.: Uveitis and Toxoplasmin Sensitivity , Am. J. Ophth. 32:127-135, 1949. 6. Vail, D.; Strong, J. C., Jr., and Stephenson, W. V.: Chorioretinitis Associated with Positive Serologic Tests for Toxoplasma in Older Children and Adults , Am. J. Ophth. 26: 133-141, 1943. 7. Rieger, H.: Toxoplasmosis Acquired in Adult Life , Klin. Monatsbl. Augenh. 119:459-476, 1951 8. A Further Report on Cases of Central External Exudative Retinitis Presumably Caused by an Acquired, Adult Toxoplasmosis , Rieger Klin. Monatsbl. Augenh. 120:33-50, 1952. 9. Sabin, A. B.: Toxoplasmosis: Diagnosis and Treatment , Tr. Am. Acad. Ophth. 54:190-204, 1950 10. Am. J. Ophth. 33:1255-1268, 1950. 11. Hogan, M. J.: Ocular Toxoplasmosis , New York, Columbia University Press, 1951. 12. Pinkerton, H., and Henderson, R. G.: Adult Toxoplasmosis: a Previously Unrecognized Disease Entity Simulating the Typhus-Spotted Fever Group , J. A. M. A. 116:807-814, 1941.Crossref 13. Pinkerton, H., and Weinman, D.: Toxoplasma Infection in Man , Arch. Path. 30:374-392, 1940. 14. Guimãres, F. N.: Human Toxoplasmosis: Toxoplasmic Meningoencephalomyelitis; Occurrence in an Adult and in a Newborn Infant , Mem. Inst. Oswaldo Cruz 38:257-320, 1943. 15. Kean, B. H., and Grocott, R. G.: Asymptomatic Toxoplasmosis , Am. J. Trop. Med. 27: 745-748, 1947. 16. Heath, P., and Zuelzer, W. W.: Toxoplasmosis: Report of Eye Findings in Twins , Arch. Ophth. 33:184-191, 1945.Crossref
A.M.A. Archives of Ophthalmology – American Medical Association
Published: Aug 1, 1952
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