Melanocytoma

Melanocytoma in a Dog: Cookie’s Eyelid Bump that Was Not a Cyst

Melanocytoma in a Dog: Cookie’s Eyelid Bump that Was Not a Cyst

A melanocytoma is a benign tumor of cells that produce pigment—melanocytes. Only a histopathologist can determine the difference between a melanocytoma and a malignant melanoma. As a general rule, tumors of the pigment-producting cells are usually benign where the skin is covered by fur and malignant in bare-skin areas such as lips or nail beds. The one exception are eyelids…

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