Summary
A 51-year-old housewife developed symptoms of a cold followed by high fever, delirium, coma, rigidity of extremity muscles, positive Babinski sign and generalized convulsions, while complement-fixing antibody titre to herpes simplex virus in the sera raised over 128x and declined to 8x in the course. She finally expired of bronchopneumonia following status epilepticus after 94 days of illness.
Severe necrosis with extensive hemorrhage in the white matter was predominant in the temporal, insular and orbitofrontal cortex, thalamus and globus pallidus. Focal rarefaction of the cerebral cortex with a very few oesinophilic intranuclear inclusions in the oligodendroglia and nerve cells, nerve cell destruction in the substantia nigra with glial nodules and perivascular inflammatory cell cuffs were observed. Abundant cytomegalic inclusion cells, originating from hypertrophic astrocytes, were present in the necrotic areas of cerebrum as well as in the rarefied tissue in the subependymal layers of the brainstem and cerebellum. Electronmicroscopic study of the cytomegalic cells demonstrated the presence of numerous virions in both nucleus and cytoplasm.
Fortuitous infection of the brain by cytomegalovirus with necrotizing encephalitis by herpes simplex virus is unique. The cause of double viral infections and severe lesions by less virulent strains is discussed.
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Yanagisawa, N., Toyokura, Y. & Shiraki, H. Double encephalitis with herpes simplex virus and cytomegalovirus in an adult. Acta Neuropathol 33, 153–164 (1975). https://doi.org/10.1007/BF00687541
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DOI: https://doi.org/10.1007/BF00687541