A case of chromomycosis on the left thigh of a 65 year-old woman with breast cancer is reported. Clinically, the skin lesion was a light brown, flat surfaced, small nodule that was believed to be the incipient stage of chromomycosis. Histologically, the rete ridges were elongated to engulf the microabscesses where there were many sclerotic cells. This histological change was considered to be part of the elimination phenomenon toward the typical verrucous-crusted plaques. Many of the fungal elements recognized in the crusts and tissues were caused by long administration of steroid or by systemic diseases with immunodeficiency.
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