Case SynopsisCase 1 An 82-year-old woman was referred for a painful nodule on her left sole, which had gradually enlarged over the prior 6 months. She denied a history of trauma . On physical examination, she exhibited a unique well-defined, skin-colored nodule on her left sole (Figure 1A). Ultrasonography revealed a hypoechoic, well-circumscribed oval nodule measuring 21mm in maximum diameter. On color
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