Collagenoma is a hamartomatous lesion consisiting of proliferation of normal collagen tissue. We report herein a rare case of isolated plantar collagenoma without associated abnormalities. A 50-year-old male presented with an asymptomatic, 1.5x1.5cm sized, firm, dome-shaped tumor on his left sole. There were no associated cutaneous or systemic findings. Histopathologically, the lesion consisted of thick collagen fibers, which was compatible with collagenoma.
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