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October 22, 1982

Eikenella Brain Abscess

Author Affiliations

Livermore, Calif

JAMA. 1982;248(16):1972-1973. doi:10.1001/jama.1982.03330160024010

To the Editor.—  Eikenella corrodens is a gram-negative, facultatively anaerobic microorganism that is often a component of dental plaque and is present on 40% of healthy gums. The organism is usually nonpathogenic or weakly pathogenic. However, there have been a few reports, mostly in the dental literature, that describe important Eikenella infections. Most were associated with severe trauma, dental manipulation, or a depressed immune system.1,2 Some drug abusers have experienced abscesses after using saliva to liquefy drugs before injection.3In a series of 41 Eikenella isolates obtained at UCLA and Wadsworth Hospital Center, Los Angeles, from 1974 through 1977, there were no isolates from brain abscesses.4 Recently, we have seen a patient with a large brain abscess caused by Eikenella who had no predisposing illness or dental surgery.

Report of a Case.—  A 38-year-old man had been in excellent health. Two weeks before hospital admission, he experienced