Diagnosis: Auricular sporotrichosis.
MICROSCOPIC AND LABORATORY FINDINGS AND CLINICAL COURSE
Findings from a biopsy specimen of a nodule on the left ear revealed suppurative granulomatous dermatitis. No polarizable foreign material was identified. Special stains for bacteria and acid-fast bacilli were negative for organisms. Gomori methenamine silver stain revealed rare budding yeast forms (Figure 3). Tissue fungal culture grew Sporothrix schenckii. Septate hyphae with conidia arranged in rosettelike clusters were seen on lactophenol aniline blue stain. The patient reported no trauma to the ear but was a gardener. She was treated with oral itraconazole, 200 mg/d, and demonstrated marked improvement over the first several weeks of therapy.
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DISCUSSION
Sporotrichosis is an infection caused by the dimorphic fungus, Sporothrix schenckii. This organism lives in the soil as a saprophytic mold and following penetrating injury may cause disease in subcutaneous tissues as a yeast form. Sporotrichosis is classified within the group of subcutaneous mycoses also known as mycoses of . . . [Full Text of this Article]