Progressive Cutaneous Protothecosis

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Abstract
The diagnosis of severe progressive cutaneous protothecosis in a 34-year-old woman was made by skin biopsy and culture. Analysis of host defense mechanisms revealed a persistent defect in the ability of the patient’s PMN to kill the infecting organism. Specific IgG and IgE antibody was demonstrated. Serum levels of complement and immunoglobulins were normal or elevated. The patient was not anergic and peripheral blood lymphocytes responded to nonspecific mitogens. Treatment with amphotericin B and tetracycline resulted in resolution of skin lesions and negative cultures.