Malignant clear-cell hidradenoma of the toe

Malignant sweat gland tumors are rare tumors of the extremity. Their insidi ous growth patterns and often confusing pathological characteristics can ca use confusion with more common benign tumors. However, these tumors cannot be neglected because they do have a propensity to metastasize. Presented is a 56-year-old woman with a malignant clear-cell hidradenoma of the foot ac tually presenting as a benign lesion.