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July 1983

Eikenella corrodens: An Unusual Cause of an Indolent Skin Infection

Author Affiliations

From the Division of Dermatology, Department of Medicine, University of Washington School of Medicine, Seattle.

Arch Dermatol. 1983;119(7):624-625. doi:10.1001/archderm.1983.01650310086021

Eikenella corrodens is a slow-growing, facultative anaerobic gram-negative bacillus that has been recognized as a human pathogen only in recent years.1 The organism is part of the normal flora of the mouth, nasopharynx, bowel, and urogenital tract. It has been cultured from a variety of soft tissue infections, and E corrodens has been grown from pure cultures from subcutaneous abscesses in drug abusers.2,3 We report an unusual indolent skin infection in a drug abuser in which E corrodens was the infectious agent.

Report of a Case  A 39-year-old man was first seen in July 1980 for a slowly enlarging lesion on the wrist of one-year's duration. It had first appeared as a red papule. The patient denied any trauma to the affected area, but at the time the lesion appeared he had been regularly using intravenous (IV) heroin and methylphenidate. The drug abuse had stopped abruptly 4½ months

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