Abstract Mast cell neoplasia clinical presentation and biological behaviour vary considerably across mammalian species. ranging from a solitary benign mass to an aggressive systemic malignancy. Mutations in the KIT Proto‐Oncogene Receptor Tyrosine Kinase (KIT) gene are common molecular abnormalities involved in mast cell tumorigenesis. KIT mutations often occur in dog. https://parisnaturalfoodes.shop/product-category/l-proline/