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Article
February 1992

Pseudomonas mesophilica Cutaneous Infection in an Immunocompetent Patient

Author Affiliations

Department of Dermatology Hôpital Saint Louis University F-75475 Paris Cedex 10, France; Department of Bacteriology Institut Pasteur F-75724 Paris Cedex 15, France

Arch Dermatol. 1992;128(2):273-274. doi:10.1001/archderm.1992.01680120149028
Abstract

To the Editor.—  Pseudomonas mesophilica is a saprophyte organism that can be found on leaf surfaces and in the soil. It appears to infect immunocompromised hosts predominantly.1,2 Only once was human cutaneous infection by means of this organism reported with certainty. We report a case of P mesophilica cutaneous infection in an immunocompetent patient.

Report of a Case.—  A 28-year-old white woman visited in Ecuador from September 15 to December 15, 1989. During this period, she spent a lot of time in the countryside, where she often bathed in a river and suffered numerous skin excoriations. Around January 15, 1990, a small, subcutaneous nodule developed on the back of the first phalanx of the left index finger. During the ensuing 4 weeks, this nodule grew longer and ulcerated.She was initially treated by her general physician with minocycline (100 mg twice a day) for 15 days, with no result.

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