PMC5726696_01
Isolated and ulcerated tumor
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PMC5726696_01_abd-92-05-s1-0113-g01.jpg
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Physical examination revealed a 0.5cm round ulcerated tumor on the right palm (Figure 1).
Skin biopsy. This case shows osseous nodules on dermis composed of
lamellar bone with osteocytes and epidermis with marked hyperkeratosis
(Hematoxylin & eosin stains - X40)
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PMC5726696_01_abd-92-05-s1-0113-g02.jpg
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A 4 mm punch biopsy specimen from the lesion was obtained and stained with hematoxylin and eosin (Figure 2), which showed fragments of mature bone in the upper dermis.