Equis ISSN 2398-2977

Melanoma - skin tumor Owner Factsheet

Contributor(s): Beatrice Funiciello, Rachael Conwell

There are numerous different causes of skin lumps in horses. One of the most common nodular skin diseases is melanoma, found predominantly in grey horses. It is uncommon in non-grey horses. Although often considered a benign tumour in horses, melanoma has malignant potential and can be locally invasive; early intervention to remove/treat any tumour is advised. Treatment is much more difficult in advanced cases. It is important to call your vet to examine any new or growing lumps you notice on your horse, particularly grey horses.
Melanoma nodules around the perineum of a grey horse
©Prof Derek Knottenbelt

What is melanoma?

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How will I know if my horse has melanoma?

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How will my vet confirm my horse has melanoma?

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Can my horse be treated for melanoma?

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How can I prevent my horse from developing melanoma?

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