Presentation
They tend to be painful due to the pressure applied to the nail bed and plate. They can involve destruction of the nail bed. These lesions are not true osteochondromas, rather it is a reactive cartilage metaplasia. The reason it occurs on the dorsal aspect is because the periosteum is loose dorsally but very tightly adherent volarly.
Subungal malignant melanomas can also occur in canines.
They are distinct from subungual osteochondroma.
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Subungual exostosis (1/3), in a boy of 15 years old
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Subungual exostosis (2/3)
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Subungual exostosis (3/3), after excision
Read more about this topic: Subungual Exostosis
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